FIB_PLUS

ff7f_798f

Three-Point Test Cross Problem

A test cross is a way to explore the relationship between genes and their respective alleles. It is a useful tool for genetic mapping and deciphering the inheritance of traits. Specifically, a three-point test cross examines three (3) genes at the same time to learn about their assortment in gamete formation.

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is affiliated with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene K is analogous to the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.
Gene M is connected with the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.

Phenotype	Genotypes			Progeny Count
chummy, kidney, mushy	c	k	m	145
chummy, kidney	c	k	+	759
chummy, mushy	c	+	m	33
chummy	c	+	+	2,171
kidney, mushy	+	k	m	2,239
kidney	+	k	+	30
mushy	+	+	m	753
wildtype	+	+	+	170
TOTAL =				6,300

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and K is [CK] cM (CK)
The distance between genes C and M is [CM] cM (CM)
The distance between genes K and M is [KM] cM (KM)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CK 29 CM 6 KM 25 geneorder cmk kmc FIB_PLUS

e3d6_2f38

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene D is affiliated with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene J is associated with the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene X is analogous to the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
dewy, jerky, xanthic	d	j	x	800
dewy, jerky	d	j	+	18
dewy, xanthic	d	+	x	266
dewy	d	+	+	175
jerky, xanthic	+	j	x	149
jerky	+	j	+	226
xanthic	+	+	x	18
wildtype	+	+	+	748
TOTAL =				2,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes D and J is [DJ] cM (DJ)
The distance between genes D and X is [DX] cM (DX)
The distance between genes J and X is [JX] cM (JX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

DJ 34 DX 15 JX 22 geneorder dxj jxd FIB_PLUS

ee09_ca8e

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is associated with the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene D is linked with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene W is connected with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
artsy, dewy, waxy	a	d	w	5
artsy, dewy	a	d	+	165
artsy, waxy	a	+	w	869
artsy	a	+	+	58
dewy, waxy	+	d	w	63
dewy	+	d	+	880
waxy	+	+	w	154
wildtype	+	+	+	6
TOTAL =				2,200

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and D is [AD] cM (AD)
The distance between genes A and W is [AW] cM (AW)
The distance between genes D and W is [DW] cM (DW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AD 15 AW 20 DW 6 geneorder adw wda FIB_PLUS

f39b_8a84

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is affiliated with the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene K is related to the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.
Gene R is correlated with the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.

Phenotype	Genotypes			Progeny Count
artsy, kidney, rusty	a	k	r	15
artsy, kidney	a	k	+	1,748
artsy, rusty	a	+	r	659
artsy	a	+	+	293
kidney, rusty	+	k	r	274
kidney	+	k	+	664
rusty	+	+	r	1,735
wildtype	+	+	+	12
TOTAL =				5,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and K is [AK] cM (AK)
The distance between genes A and R is [AR] cM (AR)
The distance between genes K and R is [KR] cM (KR)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AK 35 AR 25 KR 11 geneorder ark kra FIB_PLUS

19d0_684d

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene D is related to the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene H is connected with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene J is related to the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.

Phenotype	Genotypes			Progeny Count
dewy, horsey, jerky	d	h	j	442
dewy, horsey	d	h	+	1,131
dewy, jerky	d	+	j	3,148
dewy	d	+	+	82
horsey, jerky	+	h	j	59
horsey	+	h	+	3,009
jerky	+	+	j	1,078
wildtype	+	+	+	451
TOTAL =				9,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes D and H is [DH] cM (DH)
The distance between genes D and J is [DJ] cM (DJ)
The distance between genes H and J is [HJ] cM (HJ)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

DH 33 DJ 25 HJ 11 geneorder djh hjd FIB_PLUS

e5ff_a71f

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is related to the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene C is associated with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene E is associated with the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.

Phenotype	Genotypes			Progeny Count
bumpy, chummy, eery	b	c	e	164
bumpy, chummy	b	c	+	348
bumpy, eery	b	+	e	16
bumpy	b	+	+	1,332
chummy, eery	+	c	e	1,258
chummy	+	c	+	21
eery	+	+	e	355
wildtype	+	+	+	206
TOTAL =				3,700

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and C is [BC] cM (BC)
The distance between genes B and E is [BE] cM (BE)
The distance between genes C and E is [CE] cM (CE)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BC 29 BE 11 CE 20 geneorder bec ceb FIB_PLUS

f47c_07fb

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene E is related to the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene H is analogous to the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene X is related to the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
eery, horsey, xanthic	e	h	x	608
eery, horsey	e	h	+	1,809
eery, xanthic	e	+	x	149
eery	e	+	+	499
horsey, xanthic	+	h	x	524
horsey	+	h	+	130
xanthic	+	+	x	1,818
wildtype	+	+	+	663
TOTAL =				6,200

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes E and H is [EH] cM (EH)
The distance between genes E and X is [EX] cM (EX)
The distance between genes H and X is [HX] cM (HX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

EH 21 EX 25 HX 37 geneorder hex xeh FIB_PLUS

0820_7698

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene E is related to the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene M is associated with the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.
Gene W is affiliated with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
eery, mushy, waxy	e	m	w	76
eery, mushy	e	m	+	479
eery, waxy	e	+	w	454
eery	e	+	+	1,894
mushy, waxy	+	m	w	1,876
mushy	+	m	+	416
waxy	+	+	w	507
wildtype	+	+	+	98
TOTAL =				5,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes E and M is [EM] cM (EM)
The distance between genes E and W is [EW] cM (EW)
The distance between genes M and W is [MW] cM (MW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

EM 20 EW 18 MW 32 geneorder mew wem FIB_PLUS

c281_cccd

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is connected with the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene M is affiliated with the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.
Gene T is affiliated with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
bumpy, mushy, tipsy	b	m	t	87
bumpy, mushy	b	m	+	965
bumpy, tipsy	b	+	t	340
bumpy	b	+	+	2,946
mushy, tipsy	+	m	t	3,038
mushy	+	m	+	364
tipsy	+	+	t	971
wildtype	+	+	+	89
TOTAL =				8,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and M is [BM] cM (BM)
The distance between genes B and T is [BT] cM (BT)
The distance between genes M and T is [MT] cM (MT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BM 24 BT 10 MT 30 geneorder mbt tbm FIB_PLUS

3664_64ee

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is analogous to the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene H is connected with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene T is connected with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
artsy, horsey, tipsy	a	h	t	11
artsy, horsey	a	h	+	531
artsy, tipsy	a	+	t	49
artsy	a	+	+	260
horsey, tipsy	+	h	t	233
horsey	+	h	+	70
tipsy	+	+	t	540
wildtype	+	+	+	6
TOTAL =				1,700

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and H is [AH] cM (AH)
The distance between genes A and T is [AT] cM (AT)
The distance between genes H and T is [HT] cM (HT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AH 36 AT 8 HT 30 geneorder ath hta FIB_PLUS

43fc_6772

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is linked with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene K is analogous to the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.
Gene T is analogous to the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
chummy, kidney, tipsy	c	k	t	157
chummy, kidney	c	k	+	34
chummy, tipsy	c	+	t	2,491
chummy	c	+	+	1,242
kidney, tipsy	+	k	t	1,176
kidney	+	k	+	2,501
tipsy	+	+	t	44
wildtype	+	+	+	155
TOTAL =				7,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and K is [CK] cM (CK)
The distance between genes C and T is [CT] cM (CT)
The distance between genes K and T is [KT] cM (KT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CK 5 CT 32 KT 35 geneorder kct tck FIB_PLUS

e926_2dda

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene F is connected with the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.
Gene R is correlated with the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.
Gene Y is affiliated with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
fuzzy, rusty, yucky	f	r	y	200
fuzzy, rusty	f	r	+	443
fuzzy, yucky	f	+	y	44
fuzzy	f	+	+	980
rusty, yucky	+	r	y	934
rusty	+	r	+	55
yucky	+	+	y	448
wildtype	+	+	+	196
TOTAL =				3,300

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes F and R is [FR] cM (FR)
The distance between genes F and Y is [FY] cM (FY)
The distance between genes R and Y is [RY] cM (RY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

FR 39 FY 15 RY 30 geneorder fyr ryf FIB_PLUS

14c5_44be

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is correlated with the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene C is analogous to the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene D is analogous to the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.

Phenotype	Genotypes			Progeny Count
artsy, chummy, dewy	a	c	d	210
artsy, chummy	a	c	+	2,675
artsy, dewy	a	+	d	487
artsy	a	+	+	17
chummy, dewy	+	c	d	16
chummy	+	c	+	470
dewy	+	+	d	2,572
wildtype	+	+	+	153
TOTAL =				6,600

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and C is [AC] cM (AC)
The distance between genes A and D is [AD] cM (AD)
The distance between genes C and D is [CD] cM (CD)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AC 15 AD 20 CD 6 geneorder acd dca FIB_PLUS

b5f4_6517

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene D is correlated with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene W is affiliated with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.
Gene X is related to the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
dewy, waxy, xanthic	d	w	x	164
dewy, waxy	d	w	+	26
dewy, xanthic	d	+	x	2,959
dewy	d	+	+	660
waxy, xanthic	+	w	x	670
waxy	+	w	+	2,931
xanthic	+	+	x	12
wildtype	+	+	+	178
TOTAL =				7,600

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes D and W is [DW] cM (DW)
The distance between genes D and X is [DX] cM (DX)
The distance between genes W and X is [WX] cM (WX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

DW 5 DX 18 WX 22 geneorder wdx xdw FIB_PLUS

b8e9_d8c4

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene D is analogous to the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene F is associated with the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.
Gene Y is associated with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
dewy, fuzzy, yucky	d	f	y	2,217
dewy, fuzzy	d	f	+	150
dewy, yucky	d	+	y	600
dewy	d	+	+	724
fuzzy, yucky	+	f	y	736
fuzzy	+	f	+	568
yucky	+	+	y	142
wildtype	+	+	+	2,163
TOTAL =				7,300

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes D and F is [DF] cM (DF)
The distance between genes D and Y is [DY] cM (DY)
The distance between genes F and Y is [FY] cM (FY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

DF 36 DY 24 FY 20 geneorder dyf fyd FIB_PLUS

7ce9_0e07

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is connected with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene F is analogous to the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.
Gene Y is associated with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
chummy, fuzzy, yucky	c	f	y	1,454
chummy, fuzzy	c	f	+	70
chummy, yucky	c	+	y	418
chummy	c	+	+	544
fuzzy, yucky	+	f	y	506
fuzzy	+	f	+	432
yucky	+	+	y	80
wildtype	+	+	+	1,496
TOTAL =				5,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and F is [CF] cM (CF)
The distance between genes C and Y is [CY] cM (CY)
The distance between genes F and Y is [FY] cM (FY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CF 38 CY 24 FY 20 geneorder cyf fyc FIB_PLUS

09db_078e

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene E is associated with the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene M is analogous to the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.
Gene R is linked with the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.

Phenotype	Genotypes			Progeny Count
eery, mushy, rusty	e	m	r	1,212
eery, mushy	e	m	+	124
eery, rusty	e	+	r	52
eery	e	+	+	2,244
mushy, rusty	+	m	r	2,233
mushy	+	m	+	59
rusty	+	+	r	135
wildtype	+	+	+	1,341
TOTAL =				7,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes E and M is [EM] cM (EM)
The distance between genes E and R is [ER] cM (ER)
The distance between genes M and R is [MR] cM (MR)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

EM 38 ER 36 MR 5 geneorder erm mre FIB_PLUS

7663_bdea

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is linked with the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene C is related to the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene T is analogous to the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
artsy, chummy, tipsy	a	c	t	2,482
artsy, chummy	a	c	+	18
artsy, tipsy	a	+	t	1,194
artsy	a	+	+	376
chummy, tipsy	+	c	t	403
chummy	+	c	+	1,225
tipsy	+	+	t	23
wildtype	+	+	+	2,479
TOTAL =				8,200

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and C is [AC] cM (AC)
The distance between genes A and T is [AT] cM (AT)
The distance between genes C and T is [CT] cM (CT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AC 39 AT 10 CT 30 geneorder atc cta FIB_PLUS

4ad2_4c6f

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene H is correlated with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene M is correlated with the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.
Gene P is linked with the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.

Phenotype	Genotypes			Progeny Count
horsey, mushy, prickly	h	m	p	42
horsey, mushy	h	m	+	892
horsey, prickly	h	+	p	2,753
horsey	h	+	+	158
mushy, prickly	+	m	p	150
mushy	+	m	+	2,714
prickly	+	+	p	956
wildtype	+	+	+	35
TOTAL =				7,700

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes H and M is [HM] cM (HM)
The distance between genes H and P is [HP] cM (HP)
The distance between genes M and P is [MP] cM (MP)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

HM 25 HP 28 MP 5 geneorder hmp pmh FIB_PLUS

303e_2627

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene D is related to the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene H is associated with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene N is affiliated with the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.

Phenotype	Genotypes			Progeny Count
dewy, horsey, nerdy	d	h	n	28
dewy, horsey	d	h	+	397
dewy, nerdy	d	+	n	837
dewy	d	+	+	113
horsey, nerdy	+	h	n	107
horsey	+	h	+	868
nerdy	+	+	n	373
wildtype	+	+	+	27
TOTAL =				2,750

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes D and H is [DH] cM (DH)
The distance between genes D and N is [DN] cM (DN)
The distance between genes H and N is [HN] cM (HN)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

DH 30 DN 36 HN 10 geneorder dhn nhd FIB_PLUS

dbee_5452

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene E is related to the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene R is linked with the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.
Gene Y is analogous to the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
eery, rusty, yucky	e	r	y	1,121
eery, rusty	e	r	+	9
eery, yucky	e	+	y	371
eery	e	+	+	70
rusty, yucky	+	r	y	74
rusty	+	r	+	381
yucky	+	+	y	7
wildtype	+	+	+	1,167
TOTAL =				3,200

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes E and R is [ER] cM (ER)
The distance between genes E and Y is [EY] cM (EY)
The distance between genes R and Y is [RY] cM (RY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

ER 28 EY 5 RY 24 geneorder eyr rye FIB_PLUS

4657_8039

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is related to the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene J is associated with the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene K is linked with the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.

Phenotype	Genotypes			Progeny Count
artsy, jerky, kidney	a	j	k	1,019
artsy, jerky	a	j	+	2,853
artsy, kidney	a	+	k	19
artsy	a	+	+	306
jerky, kidney	+	j	k	324
jerky	+	j	+	23
kidney	+	+	k	2,817
wildtype	+	+	+	1,039
TOTAL =				8,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and J is [AJ] cM (AJ)
The distance between genes A and K is [AK] cM (AK)
The distance between genes J and K is [JK] cM (JK)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AJ 8 AK 25 JK 32 geneorder jak kaj FIB_PLUS

0688_f6a9

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene K is related to the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.
Gene R is associated with the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.
Gene T is correlated with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
kidney, rusty, tipsy	k	r	t	207
kidney, rusty	k	r	+	137
kidney, tipsy	k	+	t	28
kidney	k	+	+	728
rusty, tipsy	+	r	t	784
rusty	+	r	+	28
tipsy	+	+	t	143
wildtype	+	+	+	185
TOTAL =				2,240

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes K and R is [KR] cM (KR)
The distance between genes K and T is [KT] cM (KT)
The distance between genes R and T is [RT] cM (RT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

KR 30 KT 20 RT 15 geneorder ktr rtk FIB_PLUS

2fa0_cc12

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene H is related to the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene N is affiliated with the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.
Gene R is correlated with the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.

Phenotype	Genotypes			Progeny Count
horsey, nerdy, rusty	h	n	r	376
horsey, nerdy	h	n	+	842
horsey, rusty	h	+	r	17
horsey	h	+	+	149
nerdy, rusty	+	n	r	145
nerdy	+	n	+	25
rusty	+	+	r	824
wildtype	+	+	+	422
TOTAL =				2,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes H and N is [HN] cM (HN)
The distance between genes H and R is [HR] cM (HR)
The distance between genes N and R is [NR] cM (NR)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

HN 12 HR 30 NR 39 geneorder nhr rhn FIB_PLUS

9973_d00c

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene F is correlated with the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.
Gene K is connected with the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.
Gene Y is related to the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
fuzzy, kidney, yucky	f	k	y	416
fuzzy, kidney	f	k	+	124
fuzzy, yucky	f	+	y	7
fuzzy	f	+	+	25
kidney, yucky	+	k	y	19
kidney	+	k	+	4
yucky	+	+	y	107
wildtype	+	+	+	398
TOTAL =				1,100

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes F and K is [FK] cM (FK)
The distance between genes F and Y is [FY] cM (FY)
The distance between genes K and Y is [KY] cM (KY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

FK 5 FY 25 KY 22 geneorder fky ykf FIB_PLUS

7651_b933

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is connected with the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene E is affiliated with the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene R is affiliated with the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.

Phenotype	Genotypes			Progeny Count
bumpy, eery, rusty	b	e	r	681
bumpy, eery	b	e	+	3,273
bumpy, rusty	b	+	r	776
bumpy	b	+	+	79
eery, rusty	+	e	r	65
eery	+	e	+	808
rusty	+	+	r	3,303
wildtype	+	+	+	615
TOTAL =				9,600

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and E is [BE] cM (BE)
The distance between genes B and R is [BR] cM (BR)
The distance between genes E and R is [ER] cM (ER)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BE 18 BR 30 ER 15 geneorder ber reb FIB_PLUS

2c42_c604

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene E is correlated with the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene N is analogous to the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.
Gene T is related to the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
eery, nerdy, tipsy	e	n	t	1,128
eery, nerdy	e	n	+	244
eery, tipsy	e	+	t	35
eery	e	+	+	408
nerdy, tipsy	+	n	t	420
nerdy	+	n	+	37
tipsy	+	+	t	260
wildtype	+	+	+	1,068
TOTAL =				3,600

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes E and N is [EN] cM (EN)
The distance between genes E and T is [ET] cM (ET)
The distance between genes N and T is [NT] cM (NT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

EN 25 ET 37 NT 16 geneorder ent tne FIB_PLUS

ff96_8eb2

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene F is connected with the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.
Gene H is analogous to the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene M is related to the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.

Phenotype	Genotypes			Progeny Count
fuzzy, horsey, mushy	f	h	m	328
fuzzy, horsey	f	h	+	255
fuzzy, mushy	f	+	m	2,656
fuzzy	f	+	+	18
horsey, mushy	+	h	m	15
horsey	+	h	+	2,789
mushy	+	+	m	240
wildtype	+	+	+	299
TOTAL =				6,600

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes F and H is [FH] cM (FH)
The distance between genes F and M is [FM] cM (FM)
The distance between genes H and M is [HM] cM (HM)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

FH 17 FM 8 HM 10 geneorder fmh hmf FIB_PLUS

44ff_e64f

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is correlated with the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene F is associated with the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.
Gene W is connected with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
artsy, fuzzy, waxy	a	f	w	26
artsy, fuzzy	a	f	+	1,647
artsy, waxy	a	+	w	699
artsy	a	+	+	66
fuzzy, waxy	+	f	w	84
fuzzy	+	f	+	751
waxy	+	+	w	1,703
wildtype	+	+	+	24
TOTAL =				5,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and F is [AF] cM (AF)
The distance between genes A and W is [AW] cM (AW)
The distance between genes F and W is [FW] cM (FW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AF 32 AW 30 FW 4 geneorder awf fwa FIB_PLUS

3dd1_6087

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene M is related to the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.
Gene N is analogous to the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.
Gene R is related to the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.

Phenotype	Genotypes			Progeny Count
mushy, nerdy, rusty	m	n	r	406
mushy, nerdy	m	n	+	16
mushy, rusty	m	+	r	2,544
mushy	m	+	+	144
nerdy, rusty	+	n	r	135
nerdy	+	n	+	2,509
rusty	+	+	r	15
wildtype	+	+	+	431
TOTAL =				6,200

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes M and N is [MN] cM (MN)
The distance between genes M and R is [MR] cM (MR)
The distance between genes N and R is [NR] cM (NR)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

MN 14 MR 5 NR 18 geneorder nmr rmn FIB_PLUS

7ba7_9f1a

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is associated with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene H is related to the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene P is linked with the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.

Phenotype	Genotypes			Progeny Count
chummy, horsey, prickly	c	h	p	2,307
chummy, horsey	c	h	+	554
chummy, prickly	c	+	p	13
chummy	c	+	+	71
horsey, prickly	+	h	p	79
horsey	+	h	+	17
prickly	+	+	p	616
wildtype	+	+	+	2,343
TOTAL =				6,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and H is [CH] cM (CH)
The distance between genes C and P is [CP] cM (CP)
The distance between genes H and P is [HP] cM (HP)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CH 3 CP 22 HP 20 geneorder chp phc FIB_PLUS

17f0_2471

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is analogous to the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene C is related to the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene J is correlated with the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.

Phenotype	Genotypes			Progeny Count
artsy, chummy, jerky	a	c	j	203
artsy, chummy	a	c	+	3,766
artsy, jerky	a	+	j	29
artsy	a	+	+	615
chummy, jerky	+	c	j	627
chummy	+	c	+	17
jerky	+	+	j	3,732
wildtype	+	+	+	211
TOTAL =				9,200

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and C is [AC] cM (AC)
The distance between genes A and J is [AJ] cM (AJ)
The distance between genes C and J is [CJ] cM (CJ)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AC 14 AJ 5 CJ 18 geneorder caj jac FIB_PLUS

fdcd_30ef

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene J is analogous to the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene M is connected with the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.
Gene Y is connected with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
jerky, mushy, yucky	j	m	y	1,612
jerky, mushy	j	m	+	11
jerky, yucky	j	+	y	568
jerky	j	+	+	192
mushy, yucky	+	m	y	216
mushy	+	m	+	608
yucky	+	+	y	13
wildtype	+	+	+	1,580
TOTAL =				4,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes J and M is [JM] cM (JM)
The distance between genes J and Y is [JY] cM (JY)
The distance between genes M and Y is [MY] cM (MY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

JM 33 JY 9 MY 25 geneorder jym myj FIB_PLUS

c3ab_17ff

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is correlated with the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene D is connected with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene J is analogous to the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.

Phenotype	Genotypes			Progeny Count
artsy, dewy, jerky	a	d	j	1,147
artsy, dewy	a	d	+	66
artsy, jerky	a	+	j	2,714
artsy	a	+	+	318
dewy, jerky	+	d	j	312
dewy	+	d	+	2,536
jerky	+	+	j	60
wildtype	+	+	+	1,247
TOTAL =				8,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and D is [AD] cM (AD)
The distance between genes A and J is [AJ] cM (AJ)
The distance between genes D and J is [DJ] cM (DJ)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AD 30 AJ 9 DJ 36 geneorder daj jad FIB_PLUS

64db_fa82

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is correlated with the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene W is connected with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.
Gene X is associated with the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
artsy, waxy, xanthic	a	w	x	54
artsy, waxy	a	w	+	1,699
artsy, xanthic	a	+	x	693
artsy	a	+	+	147
waxy, xanthic	+	w	x	156
waxy	+	w	+	721
xanthic	+	+	x	1,533
wildtype	+	+	+	47
TOTAL =				5,050

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and W is [AW] cM (AW)
The distance between genes A and X is [AX] cM (AX)
The distance between genes W and X is [WX] cM (WX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AW 34 AX 30 WX 8 geneorder axw wxa FIB_PLUS

92b9_1e64

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is affiliated with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene D is analogous to the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene T is affiliated with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
chummy, dewy, tipsy	c	d	t	26
chummy, dewy	c	d	+	181
chummy, tipsy	c	+	t	970
chummy	c	+	+	247
dewy, tipsy	+	d	t	271
dewy	+	d	+	892
tipsy	+	+	t	197
wildtype	+	+	+	16
TOTAL =				2,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and D is [CD] cM (CD)
The distance between genes C and T is [CT] cM (CT)
The distance between genes D and T is [DT] cM (DT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CD 15 CT 32 DT 20 geneorder cdt tdc FIB_PLUS

b860_ee0a

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is analogous to the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene H is associated with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene K is associated with the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.

Phenotype	Genotypes			Progeny Count
chummy, horsey, kidney	c	h	k	264
chummy, horsey	c	h	+	63
chummy, kidney	c	+	k	412
chummy	c	+	+	1,378
horsey, kidney	+	h	k	1,460
horsey	+	h	+	405
kidney	+	+	k	66
wildtype	+	+	+	252
TOTAL =				4,300

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and H is [CH] cM (CH)
The distance between genes C and K is [CK] cM (CK)
The distance between genes H and K is [HK] cM (HK)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CH 15 CK 31 HK 22 geneorder chk khc FIB_PLUS

2885_0d07

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene J is linked with the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene M is related to the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.
Gene X is analogous to the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
jerky, mushy, xanthic	j	m	x	1,084
jerky, mushy	j	m	+	49
jerky, xanthic	j	+	x	621
jerky	j	+	+	26
mushy, xanthic	+	m	x	11
mushy	+	m	+	637
xanthic	+	+	x	62
wildtype	+	+	+	1,210
TOTAL =				3,700

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes J and M is [JM] cM (JM)
The distance between genes J and X is [JX] cM (JX)
The distance between genes M and X is [MX] cM (MX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

JM 35 JX 4 MX 37 geneorder mjx xjm FIB_PLUS

7e37_fbef

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is affiliated with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene R is associated with the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.
Gene X is related to the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
chummy, rusty, xanthic	c	r	x	519
chummy, rusty	c	r	+	129
chummy, xanthic	c	+	x	49
chummy	c	+	+	7
rusty, xanthic	+	r	x	14
rusty	+	r	+	56
xanthic	+	+	x	130
wildtype	+	+	+	496
TOTAL =				1,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and R is [CR] cM (CR)
The distance between genes C and X is [CX] cM (CX)
The distance between genes R and X is [RX] cM (RX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CR 9 CX 20 RX 26 geneorder rcx xcr FIB_PLUS

1543_46f4

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is related to the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene D is associated with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene X is analogous to the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
bumpy, dewy, xanthic	b	d	x	1,063
bumpy, dewy	b	d	+	43
bumpy, xanthic	b	+	x	406
bumpy	b	+	+	3,009
dewy, xanthic	+	d	x	3,088
dewy	+	d	+	413
xanthic	+	+	x	48
wildtype	+	+	+	1,030
TOTAL =				9,100

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and D is [BD] cM (BD)
The distance between genes B and X is [BX] cM (BX)
The distance between genes D and X is [DX] cM (DX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BD 24 BX 32 DX 10 geneorder bdx xdb FIB_PLUS

4c74_3441

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene F is related to the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.
Gene K is analogous to the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.
Gene P is affiliated with the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.

Phenotype	Genotypes			Progeny Count
fuzzy, kidney, prickly	f	k	p	79
fuzzy, kidney	f	k	+	215
fuzzy, prickly	f	+	p	540
fuzzy	f	+	+	1,236
kidney, prickly	+	k	p	1,263
kidney	+	k	+	573
prickly	+	+	p	226
wildtype	+	+	+	68
TOTAL =				4,200

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes F and K is [FK] cM (FK)
The distance between genes F and P is [FP] cM (FP)
The distance between genes K and P is [KP] cM (KP)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

FK 14 FP 30 KP 37 geneorder kfp pfk FIB_PLUS

ef23_1595

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is analogous to the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene D is analogous to the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene H is correlated with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.

Phenotype	Genotypes			Progeny Count
chummy, dewy, horsey	c	d	h	374
chummy, dewy	c	d	+	60
chummy, horsey	c	+	h	2,699
chummy	c	+	+	988
dewy, horsey	+	d	h	986
dewy	+	d	+	2,887
horsey	+	+	h	66
wildtype	+	+	+	340
TOTAL =				8,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and D is [CD] cM (CD)
The distance between genes C and H is [CH] cM (CH)
The distance between genes D and H is [DH] cM (DH)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CD 10 CH 25 DH 32 geneorder dch hcd FIB_PLUS

e3a3_cfee

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene K is connected with the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.
Gene N is associated with the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.
Gene W is correlated with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
kidney, nerdy, waxy	k	n	w	552
kidney, nerdy	k	n	+	826
kidney, waxy	k	+	w	2,289
kidney	k	+	+	98
nerdy, waxy	+	n	w	92
nerdy	+	n	+	2,233
waxy	+	+	w	884
wildtype	+	+	+	626
TOTAL =				7,600

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes K and N is [KN] cM (KN)
The distance between genes K and W is [KW] cM (KW)
The distance between genes N and W is [NW] cM (NW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

KN 38 KW 25 NW 18 geneorder kwn nwk FIB_PLUS

8eba_c12b

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene K is associated with the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.
Gene P is correlated with the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.
Gene Y is correlated with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
kidney, prickly, yucky	k	p	y	525
kidney, prickly	k	p	+	72
kidney, yucky	k	+	y	141
kidney	k	+	+	15
prickly, yucky	+	p	y	16
prickly	+	p	+	138
yucky	+	+	y	83
wildtype	+	+	+	560
TOTAL =				1,550

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes K and P is [KP] cM (KP)
The distance between genes K and Y is [KY] cM (KY)
The distance between genes P and Y is [PY] cM (PY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

KP 20 KY 12 PY 28 geneorder pky ykp FIB_PLUS

5952_5db7

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is affiliated with the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene H is connected with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene T is affiliated with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
artsy, horsey, tipsy	a	h	t	235
artsy, horsey	a	h	+	28
artsy, tipsy	a	+	t	515
artsy	a	+	+	1,736
horsey, tipsy	+	h	t	1,645
horsey	+	h	+	514
tipsy	+	+	t	21
wildtype	+	+	+	206
TOTAL =				4,900

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and H is [AH] cM (AH)
The distance between genes A and T is [AT] cM (AT)
The distance between genes H and T is [HT] cM (HT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AH 10 AT 30 HT 22 geneorder aht tha FIB_PLUS

95cd_a94f

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene H is affiliated with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene J is related to the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene R is analogous to the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.

Phenotype	Genotypes			Progeny Count
horsey, jerky, rusty	h	j	r	781
horsey, jerky	h	j	+	2,119
horsey, rusty	h	+	r	57
horsey	h	+	+	497
jerky, rusty	+	j	r	448
jerky	+	j	+	48
rusty	+	+	r	2,256
wildtype	+	+	+	794
TOTAL =				7,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes H and J is [HJ] cM (HJ)
The distance between genes H and R is [HR] cM (HR)
The distance between genes J and R is [JR] cM (JR)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

HJ 15 HR 24 JR 36 geneorder jhr rhj FIB_PLUS

79e1_c20f

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene F is connected with the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.
Gene R is linked with the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.
Gene T is connected with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
fuzzy, rusty, tipsy	f	r	t	364
fuzzy, rusty	f	r	+	3
fuzzy, tipsy	f	+	t	21
fuzzy	f	+	+	101
rusty, tipsy	+	r	t	94
rusty	+	r	+	24
tipsy	+	+	t	2
wildtype	+	+	+	391
TOTAL =				1,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes F and R is [FR] cM (FR)
The distance between genes F and T is [FT] cM (FT)
The distance between genes R and T is [RT] cM (RT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

FR 24 FT 20 RT 5 geneorder ftr rtf FIB_PLUS

bd7b_39cd

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is linked with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene F is related to the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.
Gene H is analogous to the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.

Phenotype	Genotypes			Progeny Count
chummy, fuzzy, horsey	c	f	h	1,065
chummy, fuzzy	c	f	+	35
chummy, horsey	c	+	h	198
chummy	c	+	+	391
fuzzy, horsey	+	f	h	391
fuzzy	+	f	+	142
horsey	+	+	h	33
wildtype	+	+	+	1,145
TOTAL =				3,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and F is [CF] cM (CF)
The distance between genes C and H is [CH] cM (CH)
The distance between genes F and H is [FH] cM (FH)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CF 33 CH 25 FH 12 geneorder chf fhc FIB_PLUS

6b5b_2bc3

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene E is related to the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene H is related to the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene X is connected with the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
eery, horsey, xanthic	e	h	x	2,469
eery, horsey	e	h	+	39
eery, xanthic	e	+	x	357
eery	e	+	+	482
horsey, xanthic	+	h	x	442
horsey	+	h	+	369
xanthic	+	+	x	27
wildtype	+	+	+	2,415
TOTAL =				6,600

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes E and H is [EH] cM (EH)
The distance between genes E and X is [EX] cM (EX)
The distance between genes H and X is [HX] cM (HX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

EH 25 EX 15 HX 12 geneorder exh hxe FIB_PLUS

2707_3fd4

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene N is correlated with the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.
Gene P is associated with the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.
Gene X is related to the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
nerdy, prickly, xanthic	n	p	x	361
nerdy, prickly	n	p	+	41
nerdy, xanthic	n	+	x	18
nerdy	n	+	+	161
prickly, xanthic	+	p	x	199
prickly	+	p	+	18
xanthic	+	+	x	43
wildtype	+	+	+	359
TOTAL =				1,200

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes N and P is [NP] cM (NP)
The distance between genes N and X is [NX] cM (NX)
The distance between genes P and X is [PX] cM (PX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

NP 33 NX 37 PX 10 geneorder npx xpn FIB_PLUS

4968_d0d7

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene R is analogous to the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.
Gene W is related to the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.
Gene X is analogous to the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
rusty, waxy, xanthic	r	w	x	391
rusty, waxy	r	w	+	727
rusty, xanthic	r	+	x	1,882
rusty	r	+	+	45
waxy, xanthic	+	w	x	45
waxy	+	w	+	1,868
xanthic	+	+	x	683
wildtype	+	+	+	359
TOTAL =				6,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes R and W is [RW] cM (RW)
The distance between genes R and X is [RX] cM (RX)
The distance between genes W and X is [WX] cM (WX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

RW 36 RX 25 WX 14 geneorder rxw wxr FIB_PLUS

063d_0272

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is connected with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene D is connected with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene X is connected with the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
chummy, dewy, xanthic	c	d	x	468
chummy, dewy	c	d	+	1,057
chummy, xanthic	c	+	x	185
chummy	c	+	+	58
dewy, xanthic	+	d	x	47
dewy	+	d	+	200
xanthic	+	+	x	1,008
wildtype	+	+	+	477
TOTAL =				3,500

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and D is [CD] cM (CD)
The distance between genes C and X is [CX] cM (CX)
The distance between genes D and X is [DX] cM (DX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CD 14 CX 38 DX 30 geneorder cdx xdc FIB_PLUS

73cf_3d0b

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene E is linked with the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene F is correlated with the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.
Gene M is related to the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.

Phenotype	Genotypes			Progeny Count
eery, fuzzy, mushy	e	f	m	418
eery, fuzzy	e	f	+	40
eery, mushy	e	+	m	464
eery	e	+	+	1,778
fuzzy, mushy	+	f	m	1,742
fuzzy	+	f	+	526
mushy	+	+	m	70
wildtype	+	+	+	462
TOTAL =				5,500

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes E and F is [EF] cM (EF)
The distance between genes E and M is [EM] cM (EM)
The distance between genes F and M is [FM] cM (FM)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

EF 18 EM 34 FM 20 geneorder efm mfe FIB_PLUS

68a8_0900

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene D is correlated with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene H is correlated with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene M is analogous to the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.

Phenotype	Genotypes			Progeny Count
dewy, horsey, mushy	d	h	m	16
dewy, horsey	d	h	+	226
dewy, mushy	d	+	m	1,256
dewy	d	+	+	178
horsey, mushy	+	h	m	196
horsey	+	h	+	1,260
mushy	+	+	m	250
wildtype	+	+	+	18
TOTAL =				3,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes D and H is [DH] cM (DH)
The distance between genes D and M is [DM] cM (DM)
The distance between genes H and M is [HM] cM (HM)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

DH 15 DM 25 HM 12 geneorder dhm mhd FIB_PLUS

5bc4_d4eb

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene P is associated with the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.
Gene R is linked with the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.
Gene Y is linked with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
prickly, rusty, yucky	p	r	y	607
prickly, rusty	p	r	+	238
prickly, yucky	p	+	y	2,359
prickly	p	+	+	44
rusty, yucky	+	r	y	52
rusty	+	r	+	2,281
yucky	+	+	y	242
wildtype	+	+	+	577
TOTAL =				6,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes P and R is [PR] cM (PR)
The distance between genes P and Y is [PY] cM (PY)
The distance between genes R and Y is [RY] cM (RY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

PR 26 PY 9 RY 20 geneorder pyr ryp FIB_PLUS

8dfa_3dfe

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene E is associated with the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene J is correlated with the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene R is associated with the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.

Phenotype	Genotypes			Progeny Count
eery, jerky, rusty	e	j	r	34
eery, jerky	e	j	+	7
eery, rusty	e	+	r	614
eery	e	+	+	238
jerky, rusty	+	j	r	284
jerky	+	j	+	574
rusty	+	+	r	11
wildtype	+	+	+	38
TOTAL =				1,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes E and J is [EJ] cM (EJ)
The distance between genes E and R is [ER] cM (ER)
The distance between genes J and R is [JR] cM (JR)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

EJ 5 ER 30 JR 33 geneorder jer rej FIB_PLUS

8887_fc85

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is correlated with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene E is associated with the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene N is linked with the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.

Phenotype	Genotypes			Progeny Count
chummy, eery, nerdy	c	e	n	102
chummy, eery	c	e	+	772
chummy, nerdy	c	+	n	405
chummy	c	+	+	2,178
eery, nerdy	+	e	n	2,110
eery	+	e	+	399
nerdy	+	+	n	635
wildtype	+	+	+	99
TOTAL =				6,700

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and E is [CE] cM (CE)
The distance between genes C and N is [CN] cM (CN)
The distance between genes E and N is [EN] cM (EN)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CE 24 CN 15 EN 33 geneorder ecn nce FIB_PLUS

51d4_0591

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene E is associated with the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene J is affiliated with the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene X is related to the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
eery, jerky, xanthic	e	j	x	654
eery, jerky	e	j	+	395
eery, xanthic	e	+	x	98
eery	e	+	+	1,963
jerky, xanthic	+	j	x	2,005
jerky	+	j	+	88
xanthic	+	+	x	349
wildtype	+	+	+	648
TOTAL =				6,200

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes E and J is [EJ] cM (EJ)
The distance between genes E and X is [EX] cM (EX)
The distance between genes J and X is [JX] cM (JX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

EJ 33 EX 24 JX 15 geneorder exj jxe FIB_PLUS

2e8c_06f3

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is affiliated with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene D is related to the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene K is associated with the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.

Phenotype	Genotypes			Progeny Count
chummy, dewy, kidney	c	d	k	356
chummy, dewy	c	d	+	25
chummy, kidney	c	+	k	276
chummy	c	+	+	1,834
dewy, kidney	+	d	k	1,866
dewy	+	d	+	274
kidney	+	+	k	25
wildtype	+	+	+	344
TOTAL =				5,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and D is [CD] cM (CD)
The distance between genes C and K is [CK] cM (CK)
The distance between genes D and K is [DK] cM (DK)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CD 15 CK 25 DK 12 geneorder cdk kdc FIB_PLUS

3d87_e7b1

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is connected with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene M is correlated with the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.
Gene P is correlated with the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.

Phenotype	Genotypes			Progeny Count
chummy, mushy, prickly	c	m	p	150
chummy, mushy	c	m	+	226
chummy, prickly	c	+	p	693
chummy	c	+	+	22
mushy, prickly	+	m	p	11
mushy	+	m	+	726
prickly	+	+	p	225
wildtype	+	+	+	147
TOTAL =				2,200

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and M is [CM] cM (CM)
The distance between genes C and P is [CP] cM (CP)
The distance between genes M and P is [MP] cM (MP)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CM 34 CP 22 MP 15 geneorder cpm mpc FIB_PLUS

9f8c_7b28

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene J is analogous to the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene K is associated with the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.
Gene M is related to the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.

Phenotype	Genotypes			Progeny Count
jerky, kidney, mushy	j	k	m	13
jerky, kidney	j	k	+	381
jerky, mushy	j	+	m	101
jerky	j	+	+	780
kidney, mushy	+	k	m	819
kidney	+	k	+	120
mushy	+	+	m	360
wildtype	+	+	+	26
TOTAL =				2,600

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes J and K is [JK] cM (JK)
The distance between genes J and M is [JM] cM (JM)
The distance between genes K and M is [KM] cM (KM)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

JK 30 JM 10 KM 37 geneorder kjm mjk FIB_PLUS

1445_ae18

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene F is correlated with the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.
Gene J is affiliated with the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene T is connected with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
fuzzy, jerky, tipsy	f	j	t	134
fuzzy, jerky	f	j	+	460
fuzzy, tipsy	f	+	t	928
fuzzy	f	+	+	4
jerky, tipsy	+	j	t	11
jerky	+	j	+	887
tipsy	+	+	t	425
wildtype	+	+	+	151
TOTAL =				3,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes F and J is [FJ] cM (FJ)
The distance between genes F and T is [FT] cM (FT)
The distance between genes J and T is [JT] cM (JT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

FJ 39 FT 30 JT 10 geneorder ftj jtf FIB_PLUS

651e_913c

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene J is correlated with the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene R is correlated with the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.
Gene T is related to the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
jerky, rusty, tipsy	j	r	t	21
jerky, rusty	j	r	+	77
jerky, tipsy	j	+	t	770
jerky	j	+	+	2,252
rusty, tipsy	+	r	t	2,243
rusty	+	r	+	749
tipsy	+	+	t	78
wildtype	+	+	+	10
TOTAL =				6,200

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes J and R is [JR] cM (JR)
The distance between genes J and T is [JT] cM (JT)
The distance between genes R and T is [RT] cM (RT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

JR 3 JT 25 RT 27 geneorder rjt tjr FIB_PLUS

4cb1_652d

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene E is affiliated with the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene K is connected with the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.
Gene T is analogous to the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
eery, kidney, tipsy	e	k	t	2,387
eery, kidney	e	k	+	120
eery, tipsy	e	+	t	878
eery	e	+	+	487
kidney, tipsy	+	k	t	514
kidney	+	k	+	816
tipsy	+	+	t	111
wildtype	+	+	+	2,387
TOTAL =				7,700

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes E and K is [EK] cM (EK)
The distance between genes E and T is [ET] cM (ET)
The distance between genes K and T is [KT] cM (KT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

EK 35 ET 16 KT 25 geneorder etk kte FIB_PLUS

70ae_5d37

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene D is analogous to the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene F is associated with the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.
Gene T is associated with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
dewy, fuzzy, tipsy	d	f	t	16
dewy, fuzzy	d	f	+	107
dewy, tipsy	d	+	t	1,428
dewy	d	+	+	820
fuzzy, tipsy	+	f	t	836
fuzzy	+	f	+	1,476
tipsy	+	+	t	109
wildtype	+	+	+	8
TOTAL =				4,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes D and F is [DF] cM (DF)
The distance between genes D and T is [DT] cM (DT)
The distance between genes F and T is [FT] cM (FT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

DF 5 DT 39 FT 35 geneorder dft tfd FIB_PLUS

3aaa_f40a

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene D is correlated with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene P is correlated with the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.
Gene Y is connected with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
dewy, prickly, yucky	d	p	y	374
dewy, prickly	d	p	+	1,366
dewy, yucky	d	+	y	39
dewy	d	+	+	271
prickly, yucky	+	p	y	275
prickly	+	p	+	45
yucky	+	+	y	1,448
wildtype	+	+	+	382
TOTAL =				4,200

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes D and P is [DP] cM (DP)
The distance between genes D and Y is [DY] cM (DY)
The distance between genes P and Y is [PY] cM (PY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

DP 15 DY 20 PY 31 geneorder pdy ydp FIB_PLUS

437e_944e

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene J is associated with the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene K is connected with the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.
Gene X is related to the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
jerky, kidney, xanthic	j	k	x	630
jerky, kidney	j	k	+	1,882
jerky, xanthic	j	+	x	88
jerky	j	+	+	361
kidney, xanthic	+	k	x	347
kidney	+	k	+	89
xanthic	+	+	x	1,894
wildtype	+	+	+	609
TOTAL =				5,900

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes J and K is [JK] cM (JK)
The distance between genes J and X is [JX] cM (JX)
The distance between genes K and X is [KX] cM (KX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

JK 15 JX 24 KX 33 geneorder kjx xjk FIB_PLUS

3b4d_0115

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is associated with the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene J is affiliated with the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene R is related to the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.

Phenotype	Genotypes			Progeny Count
artsy, jerky, rusty	a	j	r	997
artsy, jerky	a	j	+	155
artsy, rusty	a	+	r	2,160
artsy	a	+	+	454
jerky, rusty	+	j	r	464
jerky	+	j	+	2,277
rusty	+	+	r	151
wildtype	+	+	+	992
TOTAL =				7,650

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and J is [AJ] cM (AJ)
The distance between genes A and R is [AR] cM (AR)
The distance between genes J and R is [JR] cM (JR)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AJ 30 AR 16 JR 38 geneorder jar raj FIB_PLUS

c6e4_ffeb

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene D is correlated with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene E is connected with the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene K is analogous to the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.

Phenotype	Genotypes			Progeny Count
dewy, eery, kidney	d	e	k	290
dewy, eery	d	e	+	12
dewy, kidney	d	+	k	621
dewy	d	+	+	79
eery, kidney	+	e	k	91
eery	+	e	+	609
kidney	+	+	k	18
wildtype	+	+	+	280
TOTAL =				2,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes D and E is [DE] cM (DE)
The distance between genes D and K is [DK] cM (DK)
The distance between genes E and K is [EK] cM (EK)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

DE 30 DK 10 EK 37 geneorder edk kde FIB_PLUS

880d_fa3f

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene E is related to the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene R is related to the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.
Gene W is linked with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
eery, rusty, waxy	e	r	w	88
eery, rusty	e	r	+	373
eery, waxy	e	+	w	640
eery	e	+	+	1,795
rusty, waxy	+	r	w	1,801
rusty	+	r	+	636
waxy	+	+	w	381
wildtype	+	+	+	86
TOTAL =				5,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes E and R is [ER] cM (ER)
The distance between genes E and W is [EW] cM (EW)
The distance between genes R and W is [RW] cM (RW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

ER 16 EW 25 RW 35 geneorder rew wer FIB_PLUS

f663_beed

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene K is analogous to the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.
Gene P is connected with the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.
Gene W is correlated with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
kidney, prickly, waxy	k	p	w	240
kidney, prickly	k	p	+	311
kidney, waxy	k	+	w	1,059
kidney	k	+	+	19
prickly, waxy	+	p	w	14
prickly	+	p	+	1,119
waxy	+	+	w	316
wildtype	+	+	+	222
TOTAL =				3,300

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes K and P is [KP] cM (KP)
The distance between genes K and W is [KW] cM (KW)
The distance between genes P and W is [PW] cM (PW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

KP 33 KW 20 PW 15 geneorder kwp pwk FIB_PLUS

de97_f7e7

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is associated with the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene D is correlated with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene R is associated with the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.

Phenotype	Genotypes			Progeny Count
bumpy, dewy, rusty	b	d	r	278
bumpy, dewy	b	d	+	2,047
bumpy, rusty	b	+	r	73
bumpy	b	+	+	968
dewy, rusty	+	d	r	922
dewy	+	d	+	62
rusty	+	+	r	2,138
wildtype	+	+	+	262
TOTAL =				6,750

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and D is [BD] cM (BD)
The distance between genes B and R is [BR] cM (BR)
The distance between genes D and R is [DR] cM (DR)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BD 30 BR 10 DR 36 geneorder dbr rbd FIB_PLUS

713f_3331

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is analogous to the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene B is correlated with the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene J is associated with the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.

Phenotype	Genotypes			Progeny Count
artsy, bumpy, jerky	a	b	j	822
artsy, bumpy	a	b	+	37
artsy, jerky	a	+	j	1,563
artsy	a	+	+	105
bumpy, jerky	+	b	j	120
bumpy	+	b	+	1,462
jerky	+	+	j	38
wildtype	+	+	+	853
TOTAL =				5,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and B is [AB] cM (AB)
The distance between genes A and J is [AJ] cM (AJ)
The distance between genes B and J is [BJ] cM (BJ)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AB 35 AJ 6 BJ 38 geneorder baj jab FIB_PLUS

c3f0_5562

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is related to the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene K is correlated with the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.
Gene X is linked with the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
chummy, kidney, xanthic	c	k	x	11
chummy, kidney	c	k	+	922
chummy, xanthic	c	+	x	53
chummy	c	+	+	464
kidney, xanthic	+	k	x	435
kidney	+	k	+	63
xanthic	+	+	x	934
wildtype	+	+	+	18
TOTAL =				2,900

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and K is [CK] cM (CK)
The distance between genes C and X is [CX] cM (CX)
The distance between genes K and X is [KX] cM (KX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CK 35 CX 5 KX 32 geneorder cxk kxc FIB_PLUS

3c55_e539

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is affiliated with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene E is related to the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene X is analogous to the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
chummy, eery, xanthic	c	e	x	29
chummy, eery	c	e	+	361
chummy, xanthic	c	+	x	2,143
chummy	c	+	+	243
eery, xanthic	+	e	x	252
eery	+	e	+	2,092
xanthic	+	+	x	354
wildtype	+	+	+	26
TOTAL =				5,500

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and E is [CE] cM (CE)
The distance between genes C and X is [CX] cM (CX)
The distance between genes E and X is [EX] cM (EX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CE 14 CX 22 EX 10 geneorder cex xec FIB_PLUS

28d3_02c3

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene F is connected with the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.
Gene N is affiliated with the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.
Gene P is connected with the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.

Phenotype	Genotypes			Progeny Count
fuzzy, nerdy, prickly	f	n	p	827
fuzzy, nerdy	f	n	+	192
fuzzy, prickly	f	+	p	18
fuzzy	f	+	+	341
nerdy, prickly	+	n	p	317
nerdy	+	n	+	24
prickly	+	+	p	186
wildtype	+	+	+	895
TOTAL =				2,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes F and N is [FN] cM (FN)
The distance between genes F and P is [FP] cM (FP)
The distance between genes N and P is [NP] cM (NP)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

FN 25 FP 37 NP 15 geneorder fnp pnf FIB_PLUS

bc28_a121

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is affiliated with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene F is correlated with the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.
Gene N is affiliated with the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.

Phenotype	Genotypes			Progeny Count
chummy, fuzzy, nerdy	c	f	n	26
chummy, fuzzy	c	f	+	156
chummy, nerdy	c	+	n	958
chummy	c	+	+	2,132
fuzzy, nerdy	+	f	n	2,093
fuzzy	+	f	+	927
nerdy	+	+	n	169
wildtype	+	+	+	39
TOTAL =				6,500

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and F is [CF] cM (CF)
The distance between genes C and N is [CN] cM (CN)
The distance between genes F and N is [FN] cM (FN)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CF 6 CN 30 FN 34 geneorder fcn ncf FIB_PLUS

d1de_c553

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is associated with the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene T is analogous to the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.
Gene Y is linked with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
artsy, tipsy, yucky	a	t	y	13
artsy, tipsy	a	t	+	96
artsy, yucky	a	+	y	814
artsy	a	+	+	265
tipsy, yucky	+	t	y	275
tipsy	+	t	+	806
yucky	+	+	y	108
wildtype	+	+	+	23
TOTAL =				2,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and T is [AT] cM (AT)
The distance between genes A and Y is [AY] cM (AY)
The distance between genes T and Y is [TY] cM (TY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AT 10 AY 31 TY 24 geneorder aty yta FIB_PLUS

8f0a_c55a

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene E is associated with the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene N is correlated with the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.
Gene Y is analogous to the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
eery, nerdy, yucky	e	n	y	1,825
eery, nerdy	e	n	+	526
eery, yucky	e	+	y	448
eery	e	+	+	59
nerdy, yucky	+	n	y	56
nerdy	+	n	+	472
yucky	+	+	y	509
wildtype	+	+	+	1,855
TOTAL =				5,750

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes E and N is [EN] cM (EN)
The distance between genes E and Y is [EY] cM (EY)
The distance between genes N and Y is [NY] cM (NY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

EN 18 EY 20 NY 34 geneorder ney yen FIB_PLUS

2b1d_69c7

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is linked with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene E is linked with the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene W is connected with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
chummy, eery, waxy	c	e	w	3,047
chummy, eery	c	e	+	66
chummy, waxy	c	+	w	1,011
chummy	c	+	+	214
eery, waxy	+	e	w	270
eery	+	e	+	1,057
waxy	+	+	w	66
wildtype	+	+	+	3,069
TOTAL =				8,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and E is [CE] cM (CE)
The distance between genes C and W is [CW] cM (CW)
The distance between genes E and W is [EW] cM (EW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CE 29 CW 7 EW 25 geneorder cwe ewc FIB_PLUS

4d10_d189

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene D is affiliated with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene N is analogous to the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.
Gene Y is affiliated with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
dewy, nerdy, yucky	d	n	y	256
dewy, nerdy	d	n	+	864
dewy, yucky	d	+	y	3,300
dewy	d	+	+	43
nerdy, yucky	+	n	y	46
nerdy	+	n	+	3,286
yucky	+	+	y	827
wildtype	+	+	+	278
TOTAL =				8,900

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes D and N is [DN] cM (DN)
The distance between genes D and Y is [DY] cM (DY)
The distance between genes N and Y is [NY] cM (NY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

DN 25 DY 20 NY 7 geneorder dyn nyd FIB_PLUS

52ed_eb99

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene D is linked with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene W is associated with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.
Gene X is associated with the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
dewy, waxy, xanthic	d	w	x	309
dewy, waxy	d	w	+	795
dewy, xanthic	d	+	x	42
dewy	d	+	+	201
waxy, xanthic	+	w	x	204
waxy	+	w	+	39
xanthic	+	+	x	825
wildtype	+	+	+	285
TOTAL =				2,700

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes D and W is [DW] cM (DW)
The distance between genes D and X is [DX] cM (DX)
The distance between genes W and X is [WX] cM (WX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

DW 18 DX 25 WX 37 geneorder wdx xdw FIB_PLUS

2ede_5e93

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is associated with the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene J is associated with the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene W is related to the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
bumpy, jerky, waxy	b	j	w	35
bumpy, jerky	b	j	+	113
bumpy, waxy	b	+	w	1,300
bumpy	b	+	+	532
jerky, waxy	+	j	w	608
jerky	+	j	+	1,240
waxy	+	+	w	147
wildtype	+	+	+	25
TOTAL =				4,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and J is [BJ] cM (BJ)
The distance between genes B and W is [BW] cM (BW)
The distance between genes J and W is [JW] cM (JW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BJ 8 BW 35 JW 30 geneorder bjw wjb FIB_PLUS

7541_a036

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene N is connected with the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.
Gene X is related to the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.
Gene Y is related to the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
nerdy, xanthic, yucky	n	x	y	1,961
nerdy, xanthic	n	x	+	37
nerdy, yucky	n	+	y	297
nerdy	n	+	+	737
xanthic, yucky	+	x	y	727
xanthic	+	x	+	313
yucky	+	+	y	24
wildtype	+	+	+	2,004
TOTAL =				6,100

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes N and X is [NX] cM (NX)
The distance between genes N and Y is [NY] cM (NY)
The distance between genes X and Y is [XY] cM (XY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

NX 34 NY 25 XY 11 geneorder nyx xyn FIB_PLUS

7b6a_5485

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene E is affiliated with the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene N is linked with the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.
Gene W is connected with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
eery, nerdy, waxy	e	n	w	3,432
eery, nerdy	e	n	+	315
eery, waxy	e	+	w	403
eery	e	+	+	23
nerdy, waxy	+	n	w	19
nerdy	+	n	+	395
waxy	+	+	w	315
wildtype	+	+	+	3,498
TOTAL =				8,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes E and N is [EN] cM (EN)
The distance between genes E and W is [EW] cM (EW)
The distance between genes N and W is [NW] cM (NW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

EN 10 EW 8 NW 17 geneorder new wen FIB_PLUS

92a1_e64d

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is correlated with the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene B is related to the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene F is affiliated with the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.

Phenotype	Genotypes			Progeny Count
artsy, bumpy, fuzzy	a	b	f	636
artsy, bumpy	a	b	+	29
artsy, fuzzy	a	+	f	112
artsy	a	+	+	289
bumpy, fuzzy	+	b	f	278
bumpy	+	b	+	119
fuzzy	+	+	f	34
wildtype	+	+	+	603
TOTAL =				2,100

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and B is [AB] cM (AB)
The distance between genes A and F is [AF] cM (AF)
The distance between genes B and F is [BF] cM (BF)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AB 38 AF 30 BF 14 geneorder afb bfa FIB_PLUS

91d8_7175

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is linked with the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene C is related to the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene F is correlated with the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.

Phenotype	Genotypes			Progeny Count
bumpy, chummy, fuzzy	b	c	f	363
bumpy, chummy	b	c	+	65
bumpy, fuzzy	b	+	f	690
bumpy	b	+	+	1,894
chummy, fuzzy	+	c	f	1,886
chummy	+	c	+	690
fuzzy	+	+	f	55
wildtype	+	+	+	357
TOTAL =				6,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and C is [BC] cM (BC)
The distance between genes B and F is [BF] cM (BF)
The distance between genes C and F is [CF] cM (CF)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BC 14 BF 35 CF 25 geneorder bcf fcb FIB_PLUS

30d3_ca54

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is associated with the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene C is linked with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene X is linked with the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
bumpy, chummy, xanthic	b	c	x	391
bumpy, chummy	b	c	+	2,477
bumpy, xanthic	b	+	x	1,175
bumpy	b	+	+	60
chummy, xanthic	+	c	x	63
chummy	+	c	+	1,162
xanthic	+	+	x	2,484
wildtype	+	+	+	388
TOTAL =				8,200

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and C is [BC] cM (BC)
The distance between genes B and X is [BX] cM (BX)
The distance between genes C and X is [CX] cM (CX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BC 30 BX 38 CX 11 geneorder bcx xcb FIB_PLUS

7625_f380

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is analogous to the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene B is correlated with the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene E is analogous to the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.

Phenotype	Genotypes			Progeny Count
artsy, bumpy, eery	a	b	e	2,646
artsy, bumpy	a	b	+	90
artsy, eery	a	+	e	528
artsy	a	+	+	727
bumpy, eery	+	b	e	713
bumpy	+	b	+	512
eery	+	+	e	70
wildtype	+	+	+	2,714
TOTAL =				8,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and B is [AB] cM (AB)
The distance between genes A and E is [AE] cM (AE)
The distance between genes B and E is [BE] cM (BE)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AB 31 AE 20 BE 15 geneorder aeb bea FIB_PLUS

d265_179d

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene K is analogous to the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.
Gene W is analogous to the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.
Gene X is associated with the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
kidney, waxy, xanthic	k	w	x	117
kidney, waxy	k	w	+	658
kidney, xanthic	k	+	x	165
kidney	k	+	+	13
waxy, xanthic	+	w	x	14
waxy	+	w	+	132
xanthic	+	+	x	575
wildtype	+	+	+	126
TOTAL =				1,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes K and W is [KW] cM (KW)
The distance between genes K and X is [KX] cM (KX)
The distance between genes W and X is [WX] cM (WX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

KW 18 KX 30 WX 15 geneorder kwx xwk FIB_PLUS

8178_282f

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene D is associated with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene M is correlated with the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.
Gene T is affiliated with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
dewy, mushy, tipsy	d	m	t	390
dewy, mushy	d	m	+	1,032
dewy, tipsy	d	+	t	3,217
dewy	d	+	+	94
mushy, tipsy	+	m	t	95
mushy	+	m	+	3,209
tipsy	+	+	t	1,047
wildtype	+	+	+	366
TOTAL =				9,450

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes D and M is [DM] cM (DM)
The distance between genes D and T is [DT] cM (DT)
The distance between genes M and T is [MT] cM (MT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

DM 30 DT 24 MT 10 geneorder dtm mtd FIB_PLUS

7386_77a5

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is analogous to the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene N is analogous to the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.
Gene X is analogous to the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
bumpy, nerdy, xanthic	b	n	x	756
bumpy, nerdy	b	n	+	2,321
bumpy, xanthic	b	+	x	271
bumpy	b	+	+	56
nerdy, xanthic	+	n	x	49
nerdy	+	n	+	324
xanthic	+	+	x	2,404
wildtype	+	+	+	819
TOTAL =				7,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and N is [BN] cM (BN)
The distance between genes B and X is [BX] cM (BX)
The distance between genes N and X is [NX] cM (NX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BN 10 BX 31 NX 24 geneorder bnx xnb FIB_PLUS

17dc_cad0

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene F is connected with the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.
Gene T is linked with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.
Gene W is correlated with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
fuzzy, tipsy, waxy	f	t	w	272
fuzzy, tipsy	f	t	+	43
fuzzy, waxy	f	+	w	15
fuzzy	f	+	+	637
tipsy, waxy	+	t	w	655
tipsy	+	t	+	4
waxy	+	+	w	33
wildtype	+	+	+	241
TOTAL =				1,900

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes F and T is [FT] cM (FT)
The distance between genes F and W is [FW] cM (FW)
The distance between genes T and W is [TW] cM (TW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

FT 31 FW 28 TW 5 geneorder fwt twf FIB_PLUS

f2cf_5b9e

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is connected with the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene F is affiliated with the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.
Gene P is correlated with the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.

Phenotype	Genotypes			Progeny Count
artsy, fuzzy, prickly	a	f	p	989
artsy, fuzzy	a	f	+	180
artsy, prickly	a	+	p	8
artsy	a	+	+	36
fuzzy, prickly	+	f	p	48
fuzzy	+	f	+	4
prickly	+	+	p	168
wildtype	+	+	+	967
TOTAL =				2,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and F is [AF] cM (AF)
The distance between genes A and P is [AP] cM (AP)
The distance between genes F and P is [FP] cM (FP)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AF 4 AP 18 FP 15 geneorder afp pfa FIB_PLUS

fc43_701a

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene E is analogous to the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene H is related to the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene Y is analogous to the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
eery, horsey, yucky	e	h	y	720
eery, horsey	e	h	+	139
eery, yucky	e	+	y	50
eery	e	+	+	311
horsey, yucky	+	h	y	339
horsey	+	h	+	50
yucky	+	+	y	136
wildtype	+	+	+	755
TOTAL =				2,500

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes E and H is [EH] cM (EH)
The distance between genes E and Y is [EY] cM (EY)
The distance between genes H and Y is [HY] cM (HY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

EH 30 EY 37 HY 15 geneorder ehy yhe FIB_PLUS

ebb5_1813

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is correlated with the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene N is related to the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.
Gene W is associated with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
bumpy, nerdy, waxy	b	n	w	675
bumpy, nerdy	b	n	+	10
bumpy, waxy	b	+	w	61
bumpy	b	+	+	238
nerdy, waxy	+	n	w	242
nerdy	+	n	+	79
waxy	+	+	w	10
wildtype	+	+	+	685
TOTAL =				2,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and N is [BN] cM (BN)
The distance between genes B and W is [BW] cM (BW)
The distance between genes N and W is [NW] cM (NW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BN 31 BW 25 NW 8 geneorder bwn nwb FIB_PLUS

be2c_2f13

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene T is related to the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.
Gene X is connected with the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.
Gene Y is analogous to the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
tipsy, xanthic, yucky	t	x	y	381
tipsy, xanthic	t	x	+	2,572
tipsy, yucky	t	+	y	35
tipsy	t	+	+	459
xanthic, yucky	+	x	y	521
xanthic	+	x	+	35
yucky	+	+	y	2,608
wildtype	+	+	+	389
TOTAL =				7,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes T and X is [TX] cM (TX)
The distance between genes T and Y is [TY] cM (TY)
The distance between genes X and Y is [XY] cM (XY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

TX 15 TY 12 XY 25 geneorder xty ytx FIB_PLUS

42be_89e6

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is linked with the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene P is linked with the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.
Gene W is affiliated with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
artsy, prickly, waxy	a	p	w	247
artsy, prickly	a	p	+	2,198
artsy, waxy	a	+	w	29
artsy	a	+	+	434
prickly, waxy	+	p	w	436
prickly	+	p	+	29
waxy	+	+	w	2,152
wildtype	+	+	+	275
TOTAL =				5,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and P is [AP] cM (AP)
The distance between genes A and W is [AW] cM (AW)
The distance between genes P and W is [PW] cM (PW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AP 16 AW 10 PW 24 geneorder paw wap FIB_PLUS

38b8_e85b

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is correlated with the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene F is analogous to the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.
Gene K is related to the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.

Phenotype	Genotypes			Progeny Count
bumpy, fuzzy, kidney	b	f	k	315
bumpy, fuzzy	b	f	+	78
bumpy, kidney	b	+	k	1,168
bumpy	b	+	+	403
fuzzy, kidney	+	f	k	387
fuzzy	+	f	+	1,202
kidney	+	+	k	80
wildtype	+	+	+	317
TOTAL =				3,950

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and F is [BF] cM (BF)
The distance between genes B and K is [BK] cM (BK)
The distance between genes F and K is [FK] cM (FK)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BF 20 BK 24 FK 36 geneorder fbk kbf FIB_PLUS

9873_e4a4

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is related to the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene K is analogous to the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.
Gene M is linked with the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.

Phenotype	Genotypes			Progeny Count
bumpy, kidney, mushy	b	k	m	457
bumpy, kidney	b	k	+	22
bumpy, mushy	b	+	m	96
bumpy	b	+	+	148
kidney, mushy	+	k	m	153
kidney	+	k	+	79
mushy	+	+	m	27
wildtype	+	+	+	418
TOTAL =				1,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and K is [BK] cM (BK)
The distance between genes B and M is [BM] cM (BM)
The distance between genes K and M is [KM] cM (KM)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BK 34 BM 25 KM 16 geneorder bmk kmb FIB_PLUS

caef_9690

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is connected with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene F is correlated with the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.
Gene R is associated with the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.

Phenotype	Genotypes			Progeny Count
chummy, fuzzy, rusty	c	f	r	1,017
chummy, fuzzy	c	f	+	2,765
chummy, rusty	c	+	r	116
chummy	c	+	+	557
fuzzy, rusty	+	f	r	553
fuzzy	+	f	+	106
rusty	+	+	r	2,785
wildtype	+	+	+	981
TOTAL =				8,880

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and F is [CF] cM (CF)
The distance between genes C and R is [CR] cM (CR)
The distance between genes F and R is [FR] cM (FR)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CF 15 CR 25 FR 35 geneorder fcr rcf FIB_PLUS

ead6_3c8a

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene D is associated with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene H is associated with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene K is associated with the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.

Phenotype	Genotypes			Progeny Count
dewy, horsey, kidney	d	h	k	397
dewy, horsey	d	h	+	106
dewy, kidney	d	+	k	18
dewy	d	+	+	1,415
horsey, kidney	+	h	k	1,471
horsey	+	h	+	21
kidney	+	+	k	128
wildtype	+	+	+	344
TOTAL =				3,900

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes D and H is [DH] cM (DH)
The distance between genes D and K is [DK] cM (DK)
The distance between genes H and K is [HK] cM (HK)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

DH 25 DK 20 HK 7 geneorder dkh hkd FIB_PLUS

bf4f_95cf

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is related to the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene H is affiliated with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene J is correlated with the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.

Phenotype	Genotypes			Progeny Count
chummy, horsey, jerky	c	h	j	911
chummy, horsey	c	h	+	2,678
chummy, jerky	c	+	j	342
chummy	c	+	+	75
horsey, jerky	+	h	j	83
horsey	+	h	+	369
jerky	+	+	j	2,536
wildtype	+	+	+	906
TOTAL =				7,900

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and H is [CH] cM (CH)
The distance between genes C and J is [CJ] cM (CJ)
The distance between genes H and J is [HJ] cM (HJ)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CH 11 CJ 32 HJ 25 geneorder chj jhc FIB_PLUS

1098_1078

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is linked with the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene M is connected with the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.
Gene X is related to the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
bumpy, mushy, xanthic	b	m	x	3,116
bumpy, mushy	b	m	+	31
bumpy, xanthic	b	+	x	524
bumpy	b	+	+	359
mushy, xanthic	+	m	x	361
mushy	+	m	+	516
xanthic	+	+	x	49
wildtype	+	+	+	3,044
TOTAL =				8,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and M is [BM] cM (BM)
The distance between genes B and X is [BX] cM (BX)
The distance between genes M and X is [MX] cM (MX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BM 22 BX 10 MX 14 geneorder bxm mxb FIB_PLUS

a4fd_28e7

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is related to the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene D is related to the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene Y is correlated with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
bumpy, dewy, yucky	b	d	y	35
bumpy, dewy	b	d	+	2,647
bumpy, yucky	b	+	y	339
bumpy	b	+	+	716
dewy, yucky	+	d	y	690
dewy	+	d	+	327
yucky	+	+	y	2,607
wildtype	+	+	+	39
TOTAL =				7,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and D is [BD] cM (BD)
The distance between genes B and Y is [BY] cM (BY)
The distance between genes D and Y is [DY] cM (DY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BD 28 BY 10 DY 20 geneorder byd dyb FIB_PLUS

a645_458f

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene H is associated with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene M is analogous to the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.
Gene Y is analogous to the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
horsey, mushy, yucky	h	m	y	1,353
horsey, mushy	h	m	+	99
horsey, yucky	h	+	y	3,129
horsey	h	+	+	294
mushy, yucky	+	m	y	288
mushy	+	m	+	3,079
yucky	+	+	y	95
wildtype	+	+	+	1,363
TOTAL =				9,700

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes H and M is [HM] cM (HM)
The distance between genes H and Y is [HY] cM (HY)
The distance between genes M and Y is [MY] cM (MY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

HM 30 HY 8 MY 34 geneorder mhy yhm FIB_PLUS

5a42_63f3

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is correlated with the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene B is affiliated with the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene X is correlated with the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
artsy, bumpy, xanthic	a	b	x	1,151
artsy, bumpy	a	b	+	49
artsy, xanthic	a	+	x	233
artsy	a	+	+	3,239
bumpy, xanthic	+	b	x	3,201
bumpy	+	b	+	227
xanthic	+	+	x	43
wildtype	+	+	+	1,057
TOTAL =				9,200

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and B is [AB] cM (AB)
The distance between genes A and X is [AX] cM (AX)
The distance between genes B and X is [BX] cM (BX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AB 25 AX 29 BX 6 geneorder abx xba FIB_PLUS

bb34_b875

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is related to the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene E is correlated with the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene X is correlated with the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
chummy, eery, xanthic	c	e	x	248
chummy, eery	c	e	+	671
chummy, xanthic	c	+	x	68
chummy	c	+	+	4
eery, xanthic	+	e	x	6
eery	+	e	+	62
xanthic	+	+	x	699
wildtype	+	+	+	242
TOTAL =				2,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and E is [CE] cM (CE)
The distance between genes C and X is [CX] cM (CX)
The distance between genes E and X is [EX] cM (EX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CE 7 CX 31 EX 25 geneorder cex xec FIB_PLUS

23af_7dbf

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene D is linked with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene H is analogous to the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene P is connected with the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.

Phenotype	Genotypes			Progeny Count
dewy, horsey, prickly	d	h	p	316
dewy, horsey	d	h	+	64
dewy, prickly	d	+	p	10
dewy	d	+	+	122
horsey, prickly	+	h	p	103
horsey	+	h	+	5
prickly	+	+	p	71
wildtype	+	+	+	309
TOTAL =				1,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes D and H is [DH] cM (DH)
The distance between genes D and P is [DP] cM (DP)
The distance between genes H and P is [HP] cM (HP)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

DH 24 DP 36 HP 15 geneorder dhp phd FIB_PLUS

f550_dc80

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is analogous to the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene P is correlated with the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.
Gene X is related to the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
bumpy, prickly, xanthic	b	p	x	664
bumpy, prickly	b	p	+	420
bumpy, xanthic	b	+	x	72
bumpy	b	+	+	3,610
prickly, xanthic	+	p	x	3,638
prickly	+	p	+	72
xanthic	+	+	x	492
wildtype	+	+	+	632
TOTAL =				9,600

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and P is [BP] cM (BP)
The distance between genes B and X is [BX] cM (BX)
The distance between genes P and X is [PX] cM (PX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BP 23 BX 15 PX 11 geneorder bxp pxb FIB_PLUS

f69d_0a5b

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene D is connected with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene T is linked with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.
Gene Y is affiliated with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
dewy, tipsy, yucky	d	t	y	207
dewy, tipsy	d	t	+	580
dewy, yucky	d	+	y	5
dewy	d	+	+	104
tipsy, yucky	+	t	y	94
tipsy	+	t	+	13
yucky	+	+	y	572
wildtype	+	+	+	225
TOTAL =				1,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes D and T is [DT] cM (DT)
The distance between genes D and Y is [DY] cM (DY)
The distance between genes T and Y is [TY] cM (TY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

DT 12 DY 25 TY 35 geneorder tdy ydt FIB_PLUS

06c9_81b9

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is linked with the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene F is related to the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.
Gene X is correlated with the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
bumpy, fuzzy, xanthic	b	f	x	517
bumpy, fuzzy	b	f	+	110
bumpy, xanthic	b	+	x	45
bumpy	b	+	+	946
fuzzy, xanthic	+	f	x	968
fuzzy	+	f	+	54
xanthic	+	+	x	121
wildtype	+	+	+	539
TOTAL =				3,300

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and F is [BF] cM (BF)
The distance between genes B and X is [BX] cM (BX)
The distance between genes F and X is [FX] cM (FX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BF 39 BX 35 FX 10 geneorder bxf fxb FIB_PLUS

7d16_f1bb

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is associated with the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene P is linked with the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.
Gene T is correlated with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
artsy, prickly, tipsy	a	p	t	314
artsy, prickly	a	p	+	24
artsy, tipsy	a	+	t	1,892
artsy	a	+	+	248
prickly, tipsy	+	p	t	193
prickly	+	p	+	1,881
tipsy	+	+	t	25
wildtype	+	+	+	323
TOTAL =				4,900

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and P is [AP] cM (AP)
The distance between genes A and T is [AT] cM (AT)
The distance between genes P and T is [PT] cM (PT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AP 14 AT 10 PT 22 geneorder pat tap FIB_PLUS

2a18_588b

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is associated with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene E is related to the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene T is affiliated with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
chummy, eery, tipsy	c	e	t	41
chummy, eery	c	e	+	187
chummy, tipsy	c	+	t	4
chummy	c	+	+	758
eery, tipsy	+	e	t	772
eery	+	e	+	6
tipsy	+	+	t	203
wildtype	+	+	+	29
TOTAL =				2,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and E is [CE] cM (CE)
The distance between genes C and T is [CT] cM (CT)
The distance between genes E and T is [ET] cM (ET)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CE 23 CT 4 ET 20 geneorder cte etc FIB_PLUS

a49b_ca01

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene H is connected with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene J is analogous to the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene Y is analogous to the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
horsey, jerky, yucky	h	j	y	258
horsey, jerky	h	j	+	2,602
horsey, yucky	h	+	y	49
horsey	h	+	+	970
jerky, yucky	+	j	y	902
jerky	+	j	+	29
yucky	+	+	y	2,702
wildtype	+	+	+	288
TOTAL =				7,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes H and J is [HJ] cM (HJ)
The distance between genes H and Y is [HY] cM (HY)
The distance between genes J and Y is [JY] cM (JY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

HJ 25 HY 8 JY 31 geneorder jhy yhj FIB_PLUS

4450_ce7a

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene D is connected with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene H is connected with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene J is linked with the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.

Phenotype	Genotypes			Progeny Count
dewy, horsey, jerky	d	h	j	330
dewy, horsey	d	h	+	62
dewy, jerky	d	+	j	17
dewy	d	+	+	722
horsey, jerky	+	h	j	697
horsey	+	h	+	16
jerky	+	+	j	59
wildtype	+	+	+	297
TOTAL =				2,200

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes D and H is [DH] cM (DH)
The distance between genes D and J is [DJ] cM (DJ)
The distance between genes H and J is [HJ] cM (HJ)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

DH 34 DJ 30 HJ 7 geneorder djh hjd FIB_PLUS

4921_8c01

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is related to the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene F is affiliated with the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.
Gene X is linked with the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
bumpy, fuzzy, xanthic	b	f	x	1,257
bumpy, fuzzy	b	f	+	157
bumpy, xanthic	b	+	x	8
bumpy	b	+	+	118
fuzzy, xanthic	+	f	x	122
fuzzy	+	f	+	8
xanthic	+	+	x	147
wildtype	+	+	+	1,383
TOTAL =				3,200

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and F is [BF] cM (BF)
The distance between genes B and X is [BX] cM (BX)
The distance between genes F and X is [FX] cM (FX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BF 8 BX 17 FX 10 geneorder bfx xfb FIB_PLUS

370d_385e

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene E is correlated with the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene N is related to the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.
Gene P is associated with the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.

Phenotype	Genotypes			Progeny Count
eery, nerdy, prickly	e	n	p	3,221
eery, nerdy	e	n	+	531
eery, prickly	e	+	p	22
eery	e	+	+	185
nerdy, prickly	+	n	p	166
nerdy	+	n	+	17
prickly	+	+	p	522
wildtype	+	+	+	3,136
TOTAL =				7,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes E and N is [EN] cM (EN)
The distance between genes E and P is [EP] cM (EP)
The distance between genes N and P is [NP] cM (NP)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

EN 5 EP 18 NP 14 geneorder enp pne FIB_PLUS

11c1_36a1

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is associated with the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene T is affiliated with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.
Gene W is connected with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
bumpy, tipsy, waxy	b	t	w	24
bumpy, tipsy	b	t	+	276
bumpy, waxy	b	+	w	100
bumpy	b	+	+	782
tipsy, waxy	+	t	w	826
tipsy	+	t	+	92
waxy	+	+	w	276
wildtype	+	+	+	24
TOTAL =				2,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and T is [BT] cM (BT)
The distance between genes B and W is [BW] cM (BW)
The distance between genes T and W is [TW] cM (TW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BT 25 BW 10 TW 31 geneorder tbw wbt FIB_PLUS

121c_f58d

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene F is associated with the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.
Gene P is linked with the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.
Gene R is associated with the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.

Phenotype	Genotypes			Progeny Count
fuzzy, prickly, rusty	f	p	r	32
fuzzy, prickly	f	p	+	679
fuzzy, rusty	f	+	r	121
fuzzy	f	+	+	2,172
prickly, rusty	+	p	r	2,148
prickly	+	p	+	119
rusty	+	+	r	701
wildtype	+	+	+	28
TOTAL =				6,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes F and P is [FP] cM (FP)
The distance between genes F and R is [FR] cM (FR)
The distance between genes P and R is [PR] cM (PR)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

FP 24 FR 5 PR 27 geneorder pfr rfp FIB_PLUS

c19a_4673

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is associated with the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene E is affiliated with the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene K is analogous to the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.

Phenotype	Genotypes			Progeny Count
bumpy, eery, kidney	b	e	k	928
bumpy, eery	b	e	+	14
bumpy, kidney	b	+	k	140
bumpy	b	+	+	434
eery, kidney	+	e	k	436
eery	+	e	+	130
kidney	+	+	k	16
wildtype	+	+	+	902
TOTAL =				3,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and E is [BE] cM (BE)
The distance between genes B and K is [BK] cM (BK)
The distance between genes E and K is [EK] cM (EK)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BE 38 BK 30 EK 10 geneorder bke ekb FIB_PLUS

3c3d_ec92

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is connected with the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene D is analogous to the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene X is analogous to the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
artsy, dewy, xanthic	a	d	x	176
artsy, dewy	a	d	+	477
artsy, xanthic	a	+	x	2,599
artsy	a	+	+	1,152
dewy, xanthic	+	d	x	1,136
dewy	+	d	+	2,593
xanthic	+	+	x	491
wildtype	+	+	+	176
TOTAL =				8,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and D is [AD] cM (AD)
The distance between genes A and X is [AX] cM (AX)
The distance between genes D and X is [DX] cM (DX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AD 15 AX 37 DX 30 geneorder adx xda FIB_PLUS

d2b7_c0a3

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene F is associated with the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.
Gene N is correlated with the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.
Gene P is affiliated with the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.

Phenotype	Genotypes			Progeny Count
fuzzy, nerdy, prickly	f	n	p	88
fuzzy, nerdy	f	n	+	529
fuzzy, prickly	f	+	p	172
fuzzy	f	+	+	12
nerdy, prickly	+	n	p	12
nerdy	+	n	+	204
prickly	+	+	p	503
wildtype	+	+	+	80
TOTAL =				1,600

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes F and N is [FN] cM (FN)
The distance between genes F and P is [FP] cM (FP)
The distance between genes N and P is [NP] cM (NP)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

FN 25 FP 34 NP 12 geneorder fnp pnf FIB_PLUS

34ac_41ad

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is analogous to the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene C is affiliated with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene X is affiliated with the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
bumpy, chummy, xanthic	b	c	x	2,566
bumpy, chummy	b	c	+	944
bumpy, xanthic	b	+	x	21
bumpy	b	+	+	319
chummy, xanthic	+	c	x	344
chummy	+	c	+	18
xanthic	+	+	x	967
wildtype	+	+	+	2,621
TOTAL =				7,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and C is [BC] cM (BC)
The distance between genes B and X is [BX] cM (BX)
The distance between genes C and X is [CX] cM (CX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BC 9 BX 33 CX 25 geneorder bcx xcb FIB_PLUS

c0db_edb7

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene J is associated with the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene K is related to the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.
Gene Y is affiliated with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
jerky, kidney, yucky	j	k	y	17
jerky, kidney	j	k	+	207
jerky, yucky	j	+	y	625
jerky	j	+	+	78
kidney, yucky	+	k	y	75
kidney	+	k	+	590
yucky	+	+	y	198
wildtype	+	+	+	10
TOTAL =				1,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes J and K is [JK] cM (JK)
The distance between genes J and Y is [JY] cM (JY)
The distance between genes K and Y is [KY] cM (KY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

JK 24 JY 31 KY 10 geneorder jky ykj FIB_PLUS

f754_8337

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene H is correlated with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene R is associated with the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.
Gene T is correlated with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
horsey, rusty, tipsy	h	r	t	879
horsey, rusty	h	r	+	46
horsey, tipsy	h	+	t	2,330
horsey	h	+	+	296
rusty, tipsy	+	r	t	316
rusty	+	r	+	2,314
tipsy	+	+	t	62
wildtype	+	+	+	957
TOTAL =				7,200

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes H and R is [HR] cM (HR)
The distance between genes H and T is [HT] cM (HT)
The distance between genes R and T is [RT] cM (RT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

HR 27 HT 10 RT 34 geneorder rht thr FIB_PLUS

b25a_5ccc

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene N is associated with the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.
Gene T is related to the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.
Gene W is connected with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
nerdy, tipsy, waxy	n	t	w	1,951
nerdy, tipsy	n	t	+	686
nerdy, waxy	n	+	w	85
nerdy	n	+	+	360
tipsy, waxy	+	t	w	405
tipsy	+	t	+	68
waxy	+	+	w	691
wildtype	+	+	+	1,874
TOTAL =				6,120

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes N and T is [NT] cM (NT)
The distance between genes N and W is [NW] cM (NW)
The distance between genes T and W is [TW] cM (TW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

NT 15 NW 35 TW 25 geneorder ntw wtn FIB_PLUS

def0_b7b6

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene J is related to the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene T is linked with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.
Gene X is analogous to the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
jerky, tipsy, xanthic	j	t	x	151
jerky, tipsy	j	t	+	36
jerky, xanthic	j	+	x	2,375
jerky	j	+	+	957
tipsy, xanthic	+	t	x	960
tipsy	+	t	+	2,453
xanthic	+	+	x	35
wildtype	+	+	+	133
TOTAL =				7,100

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes J and T is [JT] cM (JT)
The distance between genes J and X is [JX] cM (JX)
The distance between genes T and X is [TX] cM (TX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

JT 5 JX 28 TX 31 geneorder tjx xjt FIB_PLUS

4bbf_7c61

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene J is affiliated with the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene M is connected with the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.
Gene T is analogous to the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
jerky, mushy, tipsy	j	m	t	12
jerky, mushy	j	m	+	421
jerky, tipsy	j	+	t	18
jerky	j	+	+	222
mushy, tipsy	+	m	t	219
mushy	+	m	+	31
tipsy	+	+	t	468
wildtype	+	+	+	9
TOTAL =				1,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes J and M is [JM] cM (JM)
The distance between genes J and T is [JT] cM (JT)
The distance between genes M and T is [MT] cM (MT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

JM 35 JT 5 MT 33 geneorder jtm mtj FIB_PLUS

93f7_440e

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene F is linked with the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.
Gene H is affiliated with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene R is related to the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.

Phenotype	Genotypes			Progeny Count
fuzzy, horsey, rusty	f	h	r	307
fuzzy, horsey	f	h	+	893
fuzzy, rusty	f	+	r	53
fuzzy	f	+	+	2,489
horsey, rusty	+	h	r	2,432
horsey	+	h	+	58
rusty	+	+	r	846
wildtype	+	+	+	322
TOTAL =				7,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes F and H is [FH] cM (FH)
The distance between genes F and R is [FR] cM (FR)
The distance between genes H and R is [HR] cM (HR)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

FH 32 FR 10 HR 25 geneorder frh hrf FIB_PLUS

5416_bbe9

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene H is analogous to the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene T is analogous to the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.
Gene Y is related to the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
horsey, tipsy, yucky	h	t	y	101
horsey, tipsy	h	t	+	279
horsey, yucky	h	+	y	2,897
horsey	h	+	+	1,621
tipsy, yucky	+	t	y	1,613
tipsy	+	t	+	2,885
yucky	+	+	y	309
wildtype	+	+	+	95
TOTAL =				9,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes H and T is [HT] cM (HT)
The distance between genes H and Y is [HY] cM (HY)
The distance between genes T and Y is [TY] cM (TY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

HT 8 HY 39 TY 35 geneorder hty yth FIB_PLUS

c21e_b008

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is analogous to the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene H is affiliated with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene T is affiliated with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
artsy, horsey, tipsy	a	h	t	1,244
artsy, horsey	a	h	+	114
artsy, tipsy	a	+	t	521
artsy	a	+	+	28
horsey, tipsy	+	h	t	29
horsey	+	h	+	562
tipsy	+	+	t	95
wildtype	+	+	+	1,207
TOTAL =				3,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and H is [AH] cM (AH)
The distance between genes A and T is [AT] cM (AT)
The distance between genes H and T is [HT] cM (HT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AH 30 AT 7 HT 34 geneorder hat tah FIB_PLUS

1bab_8673

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is related to the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene W is affiliated with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.
Gene Y is linked with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
bumpy, waxy, yucky	b	w	y	128
bumpy, waxy	b	w	+	49
bumpy, yucky	b	+	y	11
bumpy	b	+	+	326
waxy, yucky	+	w	y	339
waxy	+	w	+	14
yucky	+	+	y	36
wildtype	+	+	+	97
TOTAL =				1,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and W is [BW] cM (BW)
The distance between genes B and Y is [BY] cM (BY)
The distance between genes W and Y is [WY] cM (WY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BW 31 BY 25 WY 11 geneorder byw wyb FIB_PLUS

fa72_2ef9

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is correlated with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene F is associated with the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.
Gene W is affiliated with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
chummy, fuzzy, waxy	c	f	w	2,697
chummy, fuzzy	c	f	+	542
chummy, waxy	c	+	w	1,354
chummy	c	+	+	198
fuzzy, waxy	+	f	w	190
fuzzy	+	f	+	1,362
waxy	+	+	w	525
wildtype	+	+	+	2,832
TOTAL =				9,700

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and F is [CF] cM (CF)
The distance between genes C and W is [CW] cM (CW)
The distance between genes F and W is [FW] cM (FW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CF 32 CW 15 FW 39 geneorder fcw wcf FIB_PLUS

44be_675d

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is analogous to the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene J is affiliated with the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene X is linked with the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
chummy, jerky, xanthic	c	j	x	216
chummy, jerky	c	j	+	1,877
chummy, xanthic	c	+	x	109
chummy	c	+	+	1,006
jerky, xanthic	+	j	x	1,073
jerky	+	j	+	122
xanthic	+	+	x	1,918
wildtype	+	+	+	279
TOTAL =				6,600

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and J is [CJ] cM (CJ)
The distance between genes C and X is [CX] cM (CX)
The distance between genes J and X is [JX] cM (JX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CJ 35 CX 11 JX 39 geneorder jcx xcj FIB_PLUS

b222_c5de

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene D is connected with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene H is correlated with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene Y is related to the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
dewy, horsey, yucky	d	h	y	1,197
dewy, horsey	d	h	+	8
dewy, yucky	d	+	y	61
dewy	d	+	+	402
horsey, yucky	+	h	y	431
horsey	+	h	+	58
yucky	+	+	y	9
wildtype	+	+	+	1,234
TOTAL =				3,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes D and H is [DH] cM (DH)
The distance between genes D and Y is [DY] cM (DY)
The distance between genes H and Y is [HY] cM (HY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

DH 28 DY 25 HY 4 geneorder dyh hyd FIB_PLUS

f66f_1649

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is correlated with the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene J is correlated with the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene Y is related to the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
artsy, jerky, yucky	a	j	y	766
artsy, jerky	a	j	+	156
artsy, yucky	a	+	y	272
artsy	a	+	+	32
jerky, yucky	+	j	y	30
jerky	+	j	+	286
yucky	+	+	y	154
wildtype	+	+	+	784
TOTAL =				2,480

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and J is [AJ] cM (AJ)
The distance between genes A and Y is [AY] cM (AY)
The distance between genes J and Y is [JY] cM (JY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AJ 25 AY 15 JY 35 geneorder jay yaj FIB_PLUS

0520_02fd

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is connected with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene M is correlated with the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.
Gene X is connected with the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
chummy, mushy, xanthic	c	m	x	95
chummy, mushy	c	m	+	499
chummy, xanthic	c	+	x	1,942
chummy	c	+	+	450
mushy, xanthic	+	m	x	450
mushy	+	m	+	1,958
xanthic	+	+	x	521
wildtype	+	+	+	85
TOTAL =				6,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and M is [CM] cM (CM)
The distance between genes C and X is [CX] cM (CX)
The distance between genes M and X is [MX] cM (MX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CM 20 CX 32 MX 18 geneorder cmx xmc FIB_PLUS

4832_99f0

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is linked with the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene D is associated with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene W is correlated with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
bumpy, dewy, waxy	b	d	w	1,356
bumpy, dewy	b	d	+	78
bumpy, waxy	b	+	w	272
bumpy	b	+	+	4
dewy, waxy	+	d	w	13
dewy	+	d	+	255
waxy	+	+	w	75
wildtype	+	+	+	1,347
TOTAL =				3,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and D is [BD] cM (BD)
The distance between genes B and W is [BW] cM (BW)
The distance between genes D and W is [DW] cM (DW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BD 16 BW 5 DW 20 geneorder dbw wbd FIB_PLUS

70dd_3059

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene J is connected with the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene N is affiliated with the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.
Gene Y is correlated with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
jerky, nerdy, yucky	j	n	y	903
jerky, nerdy	j	n	+	2,295
jerky, yucky	j	+	y	114
jerky	j	+	+	688
nerdy, yucky	+	n	y	672
nerdy	+	n	+	126
yucky	+	+	y	2,345
wildtype	+	+	+	857
TOTAL =				8,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes J and N is [JN] cM (JN)
The distance between genes J and Y is [JY] cM (JY)
The distance between genes N and Y is [NY] cM (NY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

JN 20 JY 25 NY 39 geneorder njy yjn FIB_PLUS

402d_88b6

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene E is related to the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene F is associated with the 'fuzzy' phenotype. A fruit fly that is homozygous recessive for Gene F is covered in a dense layer of hairs, giving it a soft appearance.
Gene N is correlated with the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.

Phenotype	Genotypes			Progeny Count
eery, fuzzy, nerdy	e	f	n	545
eery, fuzzy	e	f	+	19
eery, nerdy	e	+	n	137
eery	e	+	+	1,526
fuzzy, nerdy	+	f	n	1,466
fuzzy	+	f	+	171
nerdy	+	+	n	25
wildtype	+	+	+	511
TOTAL =				4,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes E and F is [EF] cM (EF)
The distance between genes E and N is [EN] cM (EN)
The distance between genes F and N is [FN] cM (FN)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

EF 25 EN 31 FN 8 geneorder efn nfe FIB_PLUS

9e57_f808

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene E is related to the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene H is connected with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene N is correlated with the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.

Phenotype	Genotypes			Progeny Count
eery, horsey, nerdy	e	h	n	2,805
eery, horsey	e	h	+	445
eery, nerdy	e	+	n	46
eery	e	+	+	1,003
horsey, nerdy	+	h	n	1,061
horsey	+	h	+	40
nerdy	+	+	n	415
wildtype	+	+	+	2,785
TOTAL =				8,600

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes E and H is [EH] cM (EH)
The distance between genes E and N is [EN] cM (EN)
The distance between genes H and N is [HN] cM (HN)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

EH 25 EN 34 HN 11 geneorder ehn nhe FIB_PLUS

260c_5000

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene H is correlated with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene X is affiliated with the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.
Gene Y is correlated with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
horsey, xanthic, yucky	h	x	y	181
horsey, xanthic	h	x	+	2,223
horsey, yucky	h	+	y	679
horsey	h	+	+	804
xanthic, yucky	+	x	y	795
xanthic	+	x	+	686
yucky	+	+	y	2,262
wildtype	+	+	+	170
TOTAL =				7,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes H and X is [HX] cM (HX)
The distance between genes H and Y is [HY] cM (HY)
The distance between genes X and Y is [XY] cM (XY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

HX 38 HY 22 XY 25 geneorder hyx xyh FIB_PLUS

aa2a_1d45

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene E is correlated with the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene W is correlated with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.
Gene Y is linked with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
eery, waxy, yucky	e	w	y	72
eery, waxy	e	w	+	1,149
eery, yucky	e	+	y	482
eery	e	+	+	215
waxy, yucky	+	w	y	222
waxy	+	w	+	449
yucky	+	+	y	1,150
wildtype	+	+	+	61
TOTAL =				3,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes E and W is [EW] cM (EW)
The distance between genes E and Y is [EY] cM (EY)
The distance between genes W and Y is [WY] cM (WY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

EW 36 EY 28 WY 15 geneorder eyw wye FIB_PLUS

9b31_e305

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is connected with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene J is linked with the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene P is related to the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.

Phenotype	Genotypes			Progeny Count
chummy, jerky, prickly	c	j	p	1,391
chummy, jerky	c	j	+	237
chummy, prickly	c	+	p	11
chummy	c	+	+	671
jerky, prickly	+	j	p	686
jerky	+	j	+	12
prickly	+	+	p	200
wildtype	+	+	+	1,392
TOTAL =				4,600

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and J is [CJ] cM (CJ)
The distance between genes C and P is [CP] cM (CP)
The distance between genes J and P is [JP] cM (JP)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CJ 30 CP 39 JP 10 geneorder cjp pjc FIB_PLUS

3103_d2b2

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is analogous to the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene N is connected with the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.
Gene W is analogous to the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
chummy, nerdy, waxy	c	n	w	954
chummy, nerdy	c	n	+	357
chummy, waxy	c	+	w	54
chummy	c	+	+	270
nerdy, waxy	+	n	w	291
nerdy	+	n	+	45
waxy	+	+	w	369
wildtype	+	+	+	960
TOTAL =				3,300

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and N is [CN] cM (CN)
The distance between genes C and W is [CW] cM (CW)
The distance between genes N and W is [NW] cM (NW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CN 20 CW 39 NW 25 geneorder cnw wnc FIB_PLUS

7a79_83e9

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is analogous to the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene R is related to the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.
Gene T is linked with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
bumpy, rusty, tipsy	b	r	t	15
bumpy, rusty	b	r	+	128
bumpy, tipsy	b	+	t	357
bumpy	b	+	+	959
rusty, tipsy	+	r	t	984
rusty	+	r	+	310
tipsy	+	+	t	133
wildtype	+	+	+	14
TOTAL =				2,900

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and R is [BR] cM (BR)
The distance between genes B and T is [BT] cM (BT)
The distance between genes R and T is [RT] cM (RT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BR 10 BT 24 RT 32 geneorder rbt tbr FIB_PLUS

013d_640a

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene E is associated with the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene N is associated with the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.
Gene Y is associated with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
eery, nerdy, yucky	e	n	y	797
eery, nerdy	e	n	+	243
eery, yucky	e	+	y	64
eery	e	+	+	1,790
nerdy, yucky	+	n	y	1,775
nerdy	+	n	+	51
yucky	+	+	y	217
wildtype	+	+	+	813
TOTAL =				5,750

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes E and N is [EN] cM (EN)
The distance between genes E and Y is [EY] cM (EY)
The distance between genes N and Y is [NY] cM (NY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

EN 36 EY 30 NY 10 geneorder eyn nye FIB_PLUS

c81b_fa07

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene N is connected with the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.
Gene X is correlated with the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.
Gene Y is analogous to the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
nerdy, xanthic, yucky	n	x	y	1,119
nerdy, xanthic	n	x	+	67
nerdy, yucky	n	+	y	419
nerdy	n	+	+	358
xanthic, yucky	+	x	y	344
xanthic	+	x	+	400
yucky	+	+	y	89
wildtype	+	+	+	1,104
TOTAL =				3,900

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes N and X is [NX] cM (NX)
The distance between genes N and Y is [NY] cM (NY)
The distance between genes X and Y is [XY] cM (XY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

NX 39 NY 22 XY 25 geneorder nyx xyn FIB_PLUS

dd6b_b064

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is related to the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene D is related to the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene K is linked with the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.

Phenotype	Genotypes			Progeny Count
chummy, dewy, kidney	c	d	k	2,027
chummy, dewy	c	d	+	535
chummy, kidney	c	+	k	201
chummy	c	+	+	40
dewy, kidney	+	d	k	44
dewy	+	d	+	219
kidney	+	+	k	501
wildtype	+	+	+	2,033
TOTAL =				5,600

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and D is [CD] cM (CD)
The distance between genes C and K is [CK] cM (CK)
The distance between genes D and K is [DK] cM (DK)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CD 9 CK 20 DK 26 geneorder dck kcd FIB_PLUS

c39b_29ff

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene H is associated with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene M is analogous to the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.
Gene W is linked with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
horsey, mushy, waxy	h	m	w	259
horsey, mushy	h	m	+	915
horsey, waxy	h	+	w	188
horsey	h	+	+	8
mushy, waxy	+	m	w	6
mushy	+	m	+	218
waxy	+	+	w	919
wildtype	+	+	+	287
TOTAL =				2,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes H and M is [HM] cM (HM)
The distance between genes H and W is [HW] cM (HW)
The distance between genes M and W is [MW] cM (MW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

HM 15 HW 34 MW 20 geneorder hmw wmh FIB_PLUS

dea6_8445

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene M is affiliated with the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.
Gene X is associated with the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.
Gene Y is correlated with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
mushy, xanthic, yucky	m	x	y	439
mushy, xanthic	m	x	+	7
mushy, yucky	m	+	y	132
mushy	m	+	+	905
xanthic, yucky	+	x	y	910
xanthic	+	x	+	153
yucky	+	+	y	8
wildtype	+	+	+	446
TOTAL =				3,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes M and X is [MX] cM (MX)
The distance between genes M and Y is [MY] cM (MY)
The distance between genes X and Y is [XY] cM (XY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

MX 30 MY 39 XY 10 geneorder mxy yxm FIB_PLUS

c4f5_5453

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene M is correlated with the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.
Gene N is connected with the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.
Gene X is associated with the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
mushy, nerdy, xanthic	m	n	x	409
mushy, nerdy	m	n	+	850
mushy, xanthic	m	+	x	164
mushy	m	+	+	51
nerdy, xanthic	+	n	x	54
nerdy	+	n	+	151
xanthic	+	+	x	935
wildtype	+	+	+	386
TOTAL =				3,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes M and N is [MN] cM (MN)
The distance between genes M and X is [MX] cM (MX)
The distance between genes N and X is [NX] cM (NX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

MN 14 MX 37 NX 30 geneorder mnx xnm FIB_PLUS

4cfa_2c2e

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is associated with the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene P is associated with the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.
Gene W is analogous to the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
artsy, prickly, waxy	a	p	w	35
artsy, prickly	a	p	+	381
artsy, waxy	a	+	w	1,376
artsy	a	+	+	271
prickly, waxy	+	p	w	262
prickly	+	p	+	1,371
waxy	+	+	w	357
wildtype	+	+	+	47
TOTAL =				4,100

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and P is [AP] cM (AP)
The distance between genes A and W is [AW] cM (AW)
The distance between genes P and W is [PW] cM (PW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AP 20 AW 31 PW 15 geneorder apw wpa FIB_PLUS

a76a_c62f

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene D is linked with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene R is correlated with the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.
Gene W is correlated with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
dewy, rusty, waxy	d	r	w	191
dewy, rusty	d	r	+	2,458
dewy, waxy	d	+	w	803
dewy	d	+	+	683
rusty, waxy	+	r	w	649
rusty	+	r	+	862
waxy	+	+	w	2,537
wildtype	+	+	+	142
TOTAL =				8,325

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes D and R is [DR] cM (DR)
The distance between genes D and W is [DW] cM (DW)
The distance between genes R and W is [RW] cM (RW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

DR 36 DW 24 RW 20 geneorder dwr rwd FIB_PLUS

0182_2c5a

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene D is linked with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene X is associated with the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.
Gene Y is affiliated with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
dewy, xanthic, yucky	d	x	y	506
dewy, xanthic	d	x	+	52
dewy, yucky	d	+	y	2,008
dewy	d	+	+	278
xanthic, yucky	+	x	y	292
xanthic	+	x	+	1,982
yucky	+	+	y	62
wildtype	+	+	+	520
TOTAL =				5,700

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes D and X is [DX] cM (DX)
The distance between genes D and Y is [DY] cM (DY)
The distance between genes X and Y is [XY] cM (XY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

DX 20 DY 12 XY 28 geneorder xdy ydx FIB_PLUS

7b7b_9f5c

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is associated with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene D is associated with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene R is associated with the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.

Phenotype	Genotypes			Progeny Count
chummy, dewy, rusty	c	d	r	141
chummy, dewy	c	d	+	938
chummy, rusty	c	+	r	2,077
chummy	c	+	+	421
dewy, rusty	+	d	r	431
dewy	+	d	+	2,041
rusty	+	+	r	908
wildtype	+	+	+	143
TOTAL =				7,100

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and D is [CD] cM (CD)
The distance between genes C and R is [CR] cM (CR)
The distance between genes D and R is [DR] cM (DR)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CD 30 CR 38 DR 16 geneorder cdr rdc FIB_PLUS

84e7_ce47

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene D is associated with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene N is related to the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.
Gene Y is analogous to the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
dewy, nerdy, yucky	d	n	y	441
dewy, nerdy	d	n	+	50
dewy, yucky	d	+	y	171
dewy	d	+	+	956
nerdy, yucky	+	n	y	991
nerdy	+	n	+	192
yucky	+	+	y	49
wildtype	+	+	+	450
TOTAL =				3,300

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes D and N is [DN] cM (DN)
The distance between genes D and Y is [DY] cM (DY)
The distance between genes N and Y is [NY] cM (NY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

DN 30 DY 38 NY 14 geneorder dny ynd FIB_PLUS

325c_2603

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene H is related to the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene R is correlated with the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.
Gene Y is linked with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
horsey, rusty, yucky	h	r	y	36
horsey, rusty	h	r	+	2,355
horsey, yucky	h	+	y	147
horsey	h	+	+	1,319
rusty, yucky	+	r	y	1,299
rusty	+	r	+	161
yucky	+	+	y	2,342
wildtype	+	+	+	41
TOTAL =				7,700

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes H and R is [HR] cM (HR)
The distance between genes H and Y is [HY] cM (HY)
The distance between genes R and Y is [RY] cM (RY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

HR 38 HY 5 RY 35 geneorder hyr ryh FIB_PLUS

ad65_ad1a

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene M is linked with the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.
Gene N is related to the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.
Gene P is correlated with the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.

Phenotype	Genotypes			Progeny Count
mushy, nerdy, prickly	m	n	p	490
mushy, nerdy	m	n	+	332
mushy, prickly	m	+	p	59
mushy	m	+	+	2,733
nerdy, prickly	+	n	p	2,703
nerdy	+	n	+	49
prickly	+	+	p	352
wildtype	+	+	+	482
TOTAL =				7,200

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes M and N is [MN] cM (MN)
The distance between genes M and P is [MP] cM (MP)
The distance between genes N and P is [NP] cM (NP)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

MN 23 MP 15 NP 11 geneorder mpn npm FIB_PLUS

fa4e_97cc

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is affiliated with the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene D is related to the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene T is connected with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
bumpy, dewy, tipsy	b	d	t	63
bumpy, dewy	b	d	+	2,994
bumpy, tipsy	b	+	t	223
bumpy	b	+	+	1,618
dewy, tipsy	+	d	t	1,598
dewy	+	d	+	209
tipsy	+	+	t	2,814
wildtype	+	+	+	81
TOTAL =				9,600

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and D is [BD] cM (BD)
The distance between genes B and T is [BT] cM (BT)
The distance between genes D and T is [DT] cM (DT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BD 38 BT 6 DT 35 geneorder btd dtb FIB_PLUS

1c3a_7f9f

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is associated with the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene C is related to the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene D is correlated with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.

Phenotype	Genotypes			Progeny Count
artsy, chummy, dewy	a	c	d	35
artsy, chummy	a	c	+	3,019
artsy, dewy	a	+	d	355
artsy	a	+	+	544
chummy, dewy	+	c	d	590
chummy	+	c	+	374
dewy	+	+	d	3,137
wildtype	+	+	+	46
TOTAL =				8,100

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and C is [AC] cM (AC)
The distance between genes A and D is [AD] cM (AD)
The distance between genes C and D is [CD] cM (CD)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AC 23 AD 10 CD 15 geneorder adc cda FIB_PLUS

f87b_b299

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is related to the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene T is affiliated with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.
Gene Y is correlated with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
bumpy, tipsy, yucky	b	t	y	297
bumpy, tipsy	b	t	+	36
bumpy, yucky	b	+	y	900
bumpy	b	+	+	2,491
tipsy, yucky	+	t	y	2,534
tipsy	+	t	+	900
yucky	+	+	y	39
wildtype	+	+	+	303
TOTAL =				7,500

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and T is [BT] cM (BT)
The distance between genes B and Y is [BY] cM (BY)
The distance between genes T and Y is [TY] cM (TY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BT 9 BY 32 TY 25 geneorder bty ytb FIB_PLUS

a393_12ff

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is correlated with the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene B is correlated with the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene H is connected with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.

Phenotype	Genotypes			Progeny Count
artsy, bumpy, horsey	a	b	h	710
artsy, bumpy	a	b	+	755
artsy, horsey	a	+	h	2,744
artsy	a	+	+	77
bumpy, horsey	+	b	h	95
bumpy	+	b	+	2,760
horsey	+	+	h	793
wildtype	+	+	+	666
TOTAL =				8,600

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and B is [AB] cM (AB)
The distance between genes A and H is [AH] cM (AH)
The distance between genes B and H is [BH] cM (BH)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AB 34 AH 20 BH 18 geneorder ahb bha FIB_PLUS

acd6_5ad0

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene D is analogous to the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene M is connected with the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.
Gene P is analogous to the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.

Phenotype	Genotypes			Progeny Count
dewy, mushy, prickly	d	m	p	2,426
dewy, mushy	d	m	+	39
dewy, prickly	d	+	p	585
dewy	d	+	+	203
mushy, prickly	+	m	p	187
mushy	+	m	+	650
prickly	+	+	p	26
wildtype	+	+	+	2,384
TOTAL =				6,500

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes D and M is [DM] cM (DM)
The distance between genes D and P is [DP] cM (DP)
The distance between genes M and P is [MP] cM (MP)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

DM 25 DP 7 MP 20 geneorder dpm mpd FIB_PLUS

89b4_aed8

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene R is related to the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.
Gene T is associated with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.
Gene W is correlated with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
rusty, tipsy, waxy	r	t	w	2,195
rusty, tipsy	r	t	+	206
rusty, waxy	r	+	w	30
rusty	r	+	+	572
tipsy, waxy	+	t	w	568
tipsy	+	t	+	30
waxy	+	+	w	214
wildtype	+	+	+	2,185
TOTAL =				6,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes R and T is [RT] cM (RT)
The distance between genes R and W is [RW] cM (RW)
The distance between genes T and W is [TW] cM (TW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

RT 20 RW 26 TW 8 geneorder rtw wtr FIB_PLUS

3db3_404e

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene H is affiliated with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene K is associated with the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.
Gene X is correlated with the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
horsey, kidney, xanthic	h	k	x	32
horsey, kidney	h	k	+	782
horsey, xanthic	h	+	x	121
horsey	h	+	+	1,965
kidney, xanthic	+	k	x	1,979
kidney	+	k	+	111
xanthic	+	+	x	784
wildtype	+	+	+	26
TOTAL =				5,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes H and K is [HK] cM (HK)
The distance between genes H and X is [HX] cM (HX)
The distance between genes K and X is [KX] cM (KX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

HK 28 HX 5 KX 31 geneorder khx xhk FIB_PLUS

2b42_cbfb

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene J is correlated with the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene W is affiliated with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.
Gene X is affiliated with the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
jerky, waxy, xanthic	j	w	x	370
jerky, waxy	j	w	+	3,144
jerky, xanthic	j	+	x	66
jerky	j	+	+	720
waxy, xanthic	+	w	x	732
waxy	+	w	+	66
xanthic	+	+	x	3,324
wildtype	+	+	+	378
TOTAL =				8,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes J and W is [JW] cM (JW)
The distance between genes J and X is [JX] cM (JX)
The distance between genes W and X is [WX] cM (WX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

JW 18 JX 10 WX 25 geneorder wjx xjw FIB_PLUS

c542_cf9c

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene E is affiliated with the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene M is correlated with the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.
Gene N is analogous to the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.

Phenotype	Genotypes			Progeny Count
eery, mushy, nerdy	e	m	n	1,431
eery, mushy	e	m	+	38
eery, nerdy	e	+	n	666
eery	e	+	+	247
mushy, nerdy	+	m	n	257
mushy	+	m	+	702
nerdy	+	+	n	34
wildtype	+	+	+	1,425
TOTAL =				4,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes E and M is [EM] cM (EM)
The distance between genes E and N is [EN] cM (EN)
The distance between genes M and N is [MN] cM (MN)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

EM 39 EN 12 MN 30 geneorder enm mne FIB_PLUS

4cd3_5cbc

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is related to the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene J is related to the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene N is associated with the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.

Phenotype	Genotypes			Progeny Count
artsy, jerky, nerdy	a	j	n	642
artsy, jerky	a	j	+	436
artsy, nerdy	a	+	n	75
artsy	a	+	+	2,352
jerky, nerdy	+	j	n	2,374
jerky	+	j	+	64
nerdy	+	+	n	398
wildtype	+	+	+	609
TOTAL =				6,950

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and J is [AJ] cM (AJ)
The distance between genes A and N is [AN] cM (AN)
The distance between genes J and N is [JN] cM (JN)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AJ 30 AN 20 JN 14 geneorder anj jna FIB_PLUS

d590_9034

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene D is related to the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene K is connected with the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.
Gene T is analogous to the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
dewy, kidney, tipsy	d	k	t	693
dewy, kidney	d	k	+	98
dewy, tipsy	d	+	t	22
dewy	d	+	+	2,714
kidney, tipsy	+	k	t	2,711
kidney	+	k	+	13
tipsy	+	+	t	77
wildtype	+	+	+	672
TOTAL =				7,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes D and K is [DK] cM (DK)
The distance between genes D and T is [DT] cM (DT)
The distance between genes K and T is [KT] cM (KT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

DK 22 DT 20 KT 3 geneorder dtk ktd FIB_PLUS

d031_565e

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is connected with the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene C is analogous to the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene W is correlated with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
artsy, chummy, waxy	a	c	w	545
artsy, chummy	a	c	+	160
artsy, waxy	a	+	w	957
artsy	a	+	+	2,866
chummy, waxy	+	c	w	2,759
chummy	+	c	+	978
waxy	+	+	w	155
wildtype	+	+	+	580
TOTAL =				9,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and C is [AC] cM (AC)
The distance between genes A and W is [AW] cM (AW)
The distance between genes C and W is [CW] cM (CW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AC 16 AW 34 CW 25 geneorder acw wca FIB_PLUS

3fa4_f264

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene D is linked with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene R is analogous to the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.
Gene T is related to the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
dewy, rusty, tipsy	d	r	t	403
dewy, rusty	d	r	+	55
dewy, tipsy	d	+	t	1,698
dewy	d	+	+	447
rusty, tipsy	+	r	t	480
rusty	+	r	+	1,598
tipsy	+	+	t	48
wildtype	+	+	+	421
TOTAL =				5,150

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes D and R is [DR] cM (DR)
The distance between genes D and T is [DT] cM (DT)
The distance between genes R and T is [RT] cM (RT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

DR 18 DT 20 RT 34 geneorder rdt tdr FIB_PLUS

3fd3_825b

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene D is connected with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene M is correlated with the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.
Gene N is analogous to the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.

Phenotype	Genotypes			Progeny Count
dewy, mushy, nerdy	d	m	n	2,182
dewy, mushy	d	m	+	1,011
dewy, nerdy	d	+	n	34
dewy	d	+	+	250
mushy, nerdy	+	m	n	240
mushy	+	m	+	36
nerdy	+	+	n	1,019
wildtype	+	+	+	2,228
TOTAL =				7,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes D and M is [DM] cM (DM)
The distance between genes D and N is [DN] cM (DN)
The distance between genes M and N is [MN] cM (MN)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

DM 8 DN 36 MN 30 geneorder dmn nmd FIB_PLUS

aba3_32b9

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene E is analogous to the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene J is associated with the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene K is correlated with the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.

Phenotype	Genotypes			Progeny Count
eery, jerky, kidney	e	j	k	2,548
eery, jerky	e	j	+	756
eery, kidney	e	+	k	671
eery	e	+	+	166
jerky, kidney	+	j	k	166
jerky	+	j	+	657
kidney	+	+	k	738
wildtype	+	+	+	2,598
TOTAL =				8,300

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes E and J is [EJ] cM (EJ)
The distance between genes E and K is [EK] cM (EK)
The distance between genes J and K is [JK] cM (JK)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

EJ 20 EK 22 JK 34 geneorder jek kej FIB_PLUS

b1b6_8b05

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is affiliated with the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene M is correlated with the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.
Gene T is connected with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
bumpy, mushy, tipsy	b	m	t	677
bumpy, mushy	b	m	+	208
bumpy, tipsy	b	+	t	21
bumpy	b	+	+	3,545
mushy, tipsy	+	m	t	3,769
mushy	+	m	+	25
tipsy	+	+	t	206
wildtype	+	+	+	749
TOTAL =				9,200

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and M is [BM] cM (BM)
The distance between genes B and T is [BT] cM (BT)
The distance between genes M and T is [MT] cM (MT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BM 20 BT 16 MT 5 geneorder btm mtb FIB_PLUS

c29f_d500

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is affiliated with the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene H is correlated with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene P is correlated with the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.

Phenotype	Genotypes			Progeny Count
artsy, horsey, prickly	a	h	p	250
artsy, horsey	a	h	+	3,240
artsy, prickly	a	+	p	21
artsy	a	+	+	371
horsey, prickly	+	h	p	351
horsey	+	h	+	17
prickly	+	+	p	3,106
wildtype	+	+	+	244
TOTAL =				7,600

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and H is [AH] cM (AH)
The distance between genes A and P is [AP] cM (AP)
The distance between genes H and P is [HP] cM (HP)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AH 10 AP 7 HP 16 geneorder hap pah FIB_PLUS

e87f_322c

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene E is correlated with the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene W is analogous to the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.
Gene X is connected with the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
eery, waxy, xanthic	e	w	x	696
eery, waxy	e	w	+	70
eery, xanthic	e	+	x	272
eery	e	+	+	205
waxy, xanthic	+	w	x	220
waxy	+	w	+	228
xanthic	+	+	x	55
wildtype	+	+	+	754
TOTAL =				2,500

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes E and W is [EW] cM (EW)
The distance between genes E and X is [EX] cM (EX)
The distance between genes W and X is [WX] cM (WX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

EW 37 EX 22 WX 25 geneorder exw wxe FIB_PLUS

8a38_32f0

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is affiliated with the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene B is associated with the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene Y is related to the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
artsy, bumpy, yucky	a	b	y	1,322
artsy, bumpy	a	b	+	2,555
artsy, yucky	a	+	y	487
artsy	a	+	+	211
bumpy, yucky	+	b	y	203
bumpy	+	b	+	479
yucky	+	+	y	2,643
wildtype	+	+	+	1,300
TOTAL =				9,200

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and B is [AB] cM (AB)
The distance between genes A and Y is [AY] cM (AY)
The distance between genes B and Y is [BY] cM (BY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AB 15 AY 39 BY 33 geneorder aby yba FIB_PLUS

bdd5_03ba

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is correlated with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene D is related to the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene W is related to the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
chummy, dewy, waxy	c	d	w	666
chummy, dewy	c	d	+	25
chummy, waxy	c	+	w	911
chummy	c	+	+	3,088
dewy, waxy	+	d	w	3,069
dewy	+	d	+	922
waxy	+	+	w	22
wildtype	+	+	+	697
TOTAL =				9,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and D is [CD] cM (CD)
The distance between genes C and W is [CW] cM (CW)
The distance between genes D and W is [DW] cM (DW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CD 15 CW 34 DW 20 geneorder cdw wdc FIB_PLUS

a25b_1f73

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene M is correlated with the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.
Gene X is associated with the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.
Gene Y is connected with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
mushy, xanthic, yucky	m	x	y	69
mushy, xanthic	m	x	+	231
mushy, yucky	m	+	y	356
mushy	m	+	+	886
xanthic, yucky	+	x	y	839
xanthic	+	x	+	319
yucky	+	+	y	234
wildtype	+	+	+	66
TOTAL =				3,000

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes M and X is [MX] cM (MX)
The distance between genes M and Y is [MY] cM (MY)
The distance between genes X and Y is [XY] cM (XY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

MX 20 MY 27 XY 38 geneorder xmy ymx FIB_PLUS

1ea3_c1e0

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is related to the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene T is connected with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.
Gene Y is correlated with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
artsy, tipsy, yucky	a	t	y	2,361
artsy, tipsy	a	t	+	174
artsy, yucky	a	+	y	443
artsy	a	+	+	1,199
tipsy, yucky	+	t	y	1,125
tipsy	+	t	+	470
yucky	+	+	y	158
wildtype	+	+	+	2,370
TOTAL =				8,300

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and T is [AT] cM (AT)
The distance between genes A and Y is [AY] cM (AY)
The distance between genes T and Y is [TY] cM (TY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AT 39 AY 32 TY 15 geneorder ayt tya FIB_PLUS

150f_6097

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene H is associated with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene W is correlated with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.
Gene Y is correlated with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
horsey, waxy, yucky	h	w	y	638
horsey, waxy	h	w	+	2,573
horsey, yucky	h	+	y	89
horsey	h	+	+	18
waxy, yucky	+	w	y	15
waxy	+	w	+	76
yucky	+	+	y	2,542
wildtype	+	+	+	649
TOTAL =				6,600

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes H and W is [HW] cM (HW)
The distance between genes H and Y is [HY] cM (HY)
The distance between genes W and Y is [WY] cM (WY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

HW 3 HY 22 WY 20 geneorder hwy ywh FIB_PLUS

9123_cf87

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene E is affiliated with the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene R is analogous to the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.
Gene T is associated with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
eery, rusty, tipsy	e	r	t	2,518
eery, rusty	e	r	+	456
eery, tipsy	e	+	t	932
eery	e	+	+	101
rusty, tipsy	+	r	t	104
rusty	+	r	+	913
tipsy	+	+	t	487
wildtype	+	+	+	2,689
TOTAL =				8,200

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes E and R is [ER] cM (ER)
The distance between genes E and T is [ET] cM (ET)
The distance between genes R and T is [RT] cM (RT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

ER 25 ET 14 RT 34 geneorder ret ter FIB_PLUS

d1ba_54b8

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene W is affiliated with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.
Gene X is related to the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.
Gene Y is linked with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
waxy, xanthic, yucky	w	x	y	191
waxy, xanthic	w	x	+	676
waxy, yucky	w	+	y	2,969
waxy	w	+	+	998
xanthic, yucky	+	x	y	1,039
xanthic	+	x	+	2,948
yucky	+	+	y	682
wildtype	+	+	+	197
TOTAL =				9,700

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes W and X is [WX] cM (WX)
The distance between genes W and Y is [WY] cM (WY)
The distance between genes X and Y is [XY] cM (XY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

WX 18 WY 35 XY 25 geneorder wxy yxw FIB_PLUS

cf8e_0210

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is analogous to the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene K is analogous to the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.
Gene W is connected with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
bumpy, kidney, waxy	b	k	w	73
bumpy, kidney	b	k	+	41
bumpy, waxy	b	+	w	686
bumpy	b	+	+	2
kidney, waxy	+	k	w	6
kidney	+	k	+	666
waxy	+	+	w	47
wildtype	+	+	+	79
TOTAL =				1,600

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and K is [BK] cM (BK)
The distance between genes B and W is [BW] cM (BW)
The distance between genes K and W is [KW] cM (KW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BK 15 BW 6 KW 10 geneorder bwk kwb FIB_PLUS

98a3_7047

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene D is affiliated with the 'dewy' phenotype. A fruit fly that is homozygous recessive for Gene D appears moist, with its body covered in tiny droplets of water.
Gene K is related to the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.
Gene R is related to the 'rusty' phenotype. A fruit fly that is homozygous recessive for Gene R has a reddish-brown color, much like rusted iron metal.

Phenotype	Genotypes			Progeny Count
dewy, kidney, rusty	d	k	r	489
dewy, kidney	d	k	+	1,697
dewy, rusty	d	+	r	185
dewy	d	+	+	24
kidney, rusty	+	k	r	24
kidney	+	k	+	199
rusty	+	+	r	1,759
wildtype	+	+	+	423
TOTAL =				4,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes D and K is [DK] cM (DK)
The distance between genes D and R is [DR] cM (DR)
The distance between genes K and R is [KR] cM (KR)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

DK 9 DR 27 KR 20 geneorder dkr rkd FIB_PLUS

cd9c_8767

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene E is correlated with the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene J is associated with the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene P is analogous to the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.

Phenotype	Genotypes			Progeny Count
eery, jerky, prickly	e	j	p	693
eery, jerky	e	j	+	155
eery, prickly	e	+	p	266
eery	e	+	+	25
jerky, prickly	+	j	p	19
jerky	+	j	+	240
prickly	+	+	p	153
wildtype	+	+	+	649
TOTAL =				2,200

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes E and J is [EJ] cM (EJ)
The distance between genes E and P is [EP] cM (EP)
The distance between genes J and P is [JP] cM (JP)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

EJ 25 EP 16 JP 37 geneorder jep pej FIB_PLUS

eb29_c936

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is correlated with the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene H is associated with the 'horsey' phenotype. A fruit fly that is homozygous recessive for Gene H is quite big and strong-looking, much larger than your typical fruit fly.
Gene K is associated with the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.

Phenotype	Genotypes			Progeny Count
artsy, horsey, kidney	a	h	k	2,679
artsy, horsey	a	h	+	172
artsy, kidney	a	+	k	66
artsy	a	+	+	1,133
horsey, kidney	+	h	k	1,204
horsey	+	h	+	57
kidney	+	+	k	197
wildtype	+	+	+	2,692
TOTAL =				8,200

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and H is [AH] cM (AH)
The distance between genes A and K is [AK] cM (AK)
The distance between genes H and K is [HK] cM (HK)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AH 30 AK 33 HK 6 geneorder ahk kha FIB_PLUS

4058_2fe5

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene K is affiliated with the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.
Gene P is linked with the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.
Gene W is analogous to the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
kidney, prickly, waxy	k	p	w	2,830
kidney, prickly	k	p	+	846
kidney, waxy	k	+	w	976
kidney	k	+	+	253
prickly, waxy	+	p	w	237
prickly	+	p	+	984
waxy	+	+	w	820
wildtype	+	+	+	2,854
TOTAL =				9,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes K and P is [KP] cM (KP)
The distance between genes K and W is [KW] cM (KW)
The distance between genes P and W is [PW] cM (PW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

KP 25 KW 22 PW 37 geneorder pkw wkp FIB_PLUS

4460_cd21

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene J is associated with the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene K is associated with the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.
Gene P is related to the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.

Phenotype	Genotypes			Progeny Count
jerky, kidney, prickly	j	k	p	1,029
jerky, kidney	j	k	+	267
jerky, prickly	j	+	p	136
jerky	j	+	+	23
kidney, prickly	+	k	p	35
kidney	+	k	+	125
prickly	+	+	p	255
wildtype	+	+	+	1,030
TOTAL =				2,900

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes J and K is [JK] cM (JK)
The distance between genes J and P is [JP] cM (JP)
The distance between genes K and P is [KP] cM (KP)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

JK 11 JP 20 KP 27 geneorder kjp pjk FIB_PLUS

fcb0_dbb6

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene W is affiliated with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.
Gene X is analogous to the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.
Gene Y is linked with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
waxy, xanthic, yucky	w	x	y	291
waxy, xanthic	w	x	+	632
waxy, yucky	w	+	y	2,364
waxy	w	+	+	48
xanthic, yucky	+	x	y	51
xanthic	+	x	+	2,289
yucky	+	+	y	655
wildtype	+	+	+	270
TOTAL =				6,600

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes W and X is [WX] cM (WX)
The distance between genes W and Y is [WY] cM (WY)
The distance between genes X and Y is [XY] cM (XY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

WX 28 WY 21 XY 10 geneorder wyx xyw FIB_PLUS

b8e7_b3a3

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is associated with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene P is connected with the 'prickly' phenotype. A fruit fly that is homozygous recessive for Gene P is covered with sharp bristles, giving it a spiky texture.
Gene W is linked with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
chummy, prickly, waxy	c	p	w	752
chummy, prickly	c	p	+	72
chummy, waxy	c	+	w	598
chummy	c	+	+	2,766
prickly, waxy	+	p	w	2,778
prickly	+	p	+	578
waxy	+	+	w	96
wildtype	+	+	+	760
TOTAL =				8,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and P is [CP] cM (CP)
The distance between genes C and W is [CW] cM (CW)
The distance between genes P and W is [PW] cM (PW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CP 20 CW 32 PW 16 geneorder cpw wpc FIB_PLUS

aa8f_d3ce

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene B is associated with the 'bumpy' phenotype. A fruit fly that is homozygous recessive for Gene B has a skin texture that is not smooth, but rough with small bumps all over.
Gene M is analogous to the 'mushy' phenotype. A fruit fly that is homozygous recessive for Gene M feels soft to the touch and unusually squishy, unlike the usual firmness.
Gene T is affiliated with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
bumpy, mushy, tipsy	b	m	t	261
bumpy, mushy	b	m	+	25
bumpy, tipsy	b	+	t	73
bumpy	b	+	+	510
mushy, tipsy	+	m	t	525
mushy	+	m	+	62
tipsy	+	+	t	38
wildtype	+	+	+	306
TOTAL =				1,800

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes B and M is [BM] cM (BM)
The distance between genes B and T is [BT] cM (BT)
The distance between genes M and T is [MT] cM (MT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

BM 35 BT 39 MT 11 geneorder bmt tmb FIB_PLUS

a876_cfdc

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene N is associated with the 'nerdy' phenotype. A fruit fly that is homozygous recessive for Gene N has large, prominent eyes that stand out, much like thick-rimmed glasses.
Gene T is analogous to the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.
Gene W is correlated with the 'waxy' phenotype. A fruit fly that is homozygous recessive for Gene W has a thick protective layer that is water resistant and opague.

Phenotype	Genotypes			Progeny Count
nerdy, tipsy, waxy	n	t	w	75
nerdy, tipsy	n	t	+	1,108
nerdy, waxy	n	+	w	3,262
nerdy	n	+	+	235
tipsy, waxy	+	t	w	282
tipsy	+	t	+	3,271
waxy	+	+	w	1,101
wildtype	+	+	+	66
TOTAL =				9,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes N and T is [NT] cM (NT)
The distance between genes N and W is [NW] cM (NW)
The distance between genes T and W is [TW] cM (TW)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

NT 25 NW 29 TW 7 geneorder ntw wtn FIB_PLUS

e1ff_e9ad

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is affiliated with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene J is analogous to the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene T is affiliated with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
chummy, jerky, tipsy	c	j	t	567
chummy, jerky	c	j	+	107
chummy, tipsy	c	+	t	2,803
chummy	c	+	+	1,023
jerky, tipsy	+	j	t	1,020
jerky	+	j	+	2,872
tipsy	+	+	t	120
wildtype	+	+	+	568
TOTAL =				9,080

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and J is [CJ] cM (CJ)
The distance between genes C and T is [CT] cM (CT)
The distance between genes J and T is [JT] cM (JT)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CJ 15 CT 25 JT 35 geneorder jct tcj FIB_PLUS

de6e_fdce

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene C is correlated with the 'chummy' phenotype. A fruit fly that is homozygous recessive for Gene C shows behavior where it always maintains a close distance to other flies.
Gene J is linked with the 'jerky' phenotype. A fruit fly that is homozygous recessive for Gene J moves in rapid and sudden movements, displaying an unpredictable flight pattern.
Gene Y is linked with the 'yucky' phenotype. A fruit fly that is homozygous recessive for Gene Y gives off an unpleasant odor and has a generally unappealing look.

Phenotype	Genotypes			Progeny Count
chummy, jerky, yucky	c	j	y	1,533
chummy, jerky	c	j	+	26
chummy, yucky	c	+	y	565
chummy	c	+	+	328
jerky, yucky	+	j	y	309
jerky	+	j	+	611
yucky	+	+	y	23
wildtype	+	+	+	1,505
TOTAL =				4,900

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes C and J is [CJ] cM (CJ)
The distance between genes C and Y is [CY] cM (CY)
The distance between genes J and Y is [JY] cM (JY)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

CJ 37 CY 14 JY 25 geneorder cyj jyc FIB_PLUS

20c9_3e22

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene K is affiliated with the 'kidney' phenotype. A fruit fly that is homozygous recessive for Gene K has a body shape that is curved, similar to a kidney bean.
Gene T is linked with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.
Gene X is associated with the 'xanthic' phenotype. A fruit fly that is homozygous recessive for Gene X has a fluorescent bright yellow coloring.

Phenotype	Genotypes			Progeny Count
kidney, tipsy, xanthic	k	t	x	1,175
kidney, tipsy	k	t	+	2,223
kidney, xanthic	k	+	x	51
kidney	k	+	+	125
tipsy, xanthic	+	t	x	127
tipsy	+	t	+	57
xanthic	+	+	x	2,205
wildtype	+	+	+	1,237
TOTAL =				7,200

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes K and T is [KT] cM (KT)
The distance between genes K and X is [KX] cM (KX)
The distance between genes T and X is [TX] cM (TX)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

KT 5 KX 35 TX 37 geneorder tkx xkt FIB_PLUS

bbc7_dc16

Three-Point Test Cross Problem

A standard three-point test cross involves crossing a heterozygous organism for all three genes with an organism that is homozygous recessive for all three genes

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for three genes was conducted to understand their genetic interactions.

Characteristics of Recessive Phenotypes

Gene A is analogous to the 'artsy' phenotype. A fruit fly that is homozygous recessive for Gene A has wings that are colorful and distinctive patterns.
Gene E is linked with the 'eery' phenotype. A fruit fly that is homozygous recessive for Gene E appears to have something off, crooked limbs and other twisted appendages.
Gene T is associated with the 'tipsy' phenotype. A fruit fly that is homozygous recessive for Gene T moves in an erratic path, suggesting a lack of coordination, as if intoxicated.

Phenotype	Genotypes			Progeny Count
artsy, eery, tipsy	a	e	t	1,920
artsy, eery	a	e	+	680
artsy, tipsy	a	+	t	525
artsy	a	+	+	155
eery, tipsy	+	e	t	133
eery	+	e	+	531
tipsy	+	+	t	632
wildtype	+	+	+	1,824
TOTAL =				6,400

Question

Using the table above, determine the order of the genes and the distances between them. Once calculated, fill in the following four blanks:

The distance between genes A and E is [AE] cM (AE)
The distance between genes A and T is [AT] cM (AT)
The distance between genes E and T is [ET] cM (ET)
From this the correct order of the genes is [geneorder] (gene order).

Hints

Important Tip 1: Your calculated distances between each pair of genes should be a whole number. Finding a decimal in your answer, such as 5.5, indicates a mistake was made. Please provide your answer as a complete number without fractions or decimals.
Important Tip 2: Your answer should be written as a numerical value only, with no spaces, commas, or units such as "cM" or "map units". For example, if the distance is fifty one centimorgans, simply write "51".
Important Tip 3: Your gene order answer should be written as three letters only, with no spaces, commas, hyphens, or other characters allowed. For example, if the gene order is B - A - C, simply write "bac" or "cab".

AE 21 AT 25 ET 37 geneorder eat tae