FIB_PLUS

9548_4c17

Four-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 four-point test cross examines four (4) genes at the same time to learn about their assortment in gamete formation.

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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
dewy, nerdy, tipsy, xanthic	d	n	t	x	75
dewy, nerdy, tipsy	d	n	t	+	943
dewy, nerdy, xanthic	d	n	+	x	342
dewy, nerdy	d	n	+	+	1,899
dewy, tipsy, xanthic	d	+	t	x	6,491
dewy, tipsy	d	+	t	+	2,085
dewy, xanthic	d	+	+	x	138
dewy	d	+	+	+	45

Phenotype	Genotypes				Progeny Count
nerdy, tipsy, xanthic	+	n	t	x	39
nerdy, tipsy	+	n	t	+	138
nerdy, xanthic	+	n	+	x	2,031
nerdy	+	n	+	+	6,553
tipsy, xanthic	+	+	t	x	1,869
tipsy	+	+	t	+	330
xanthic	+	+	+	x	929
wildtype	+	+	+	+	93

Combined total progeny: 24,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between D and N: [DN] cM
Distance between D and T: [DT] cM
Distance between D and X: [DX] cM
Distance between N and T: [NT] cM
Distance between N and X: [NX] cM
Distance between T and X: [TX] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

DN 27.0 27 DT 20.0 20 DX 41.0 41 NT 10.0 10 NX 21.0 21 TX 28.9 geneorder dtnx xntd DTNX XNTD FIB_PLUS

6699_cc66

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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.

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.

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
bumpy, kidney, prickly, waxy	b	k	p	w	22
bumpy, kidney, prickly	b	k	p	+	3,140
bumpy, kidney, waxy	b	k	+	w	155
bumpy, kidney	b	k	+	+	9,602
bumpy, prickly, waxy	b	+	p	w	551
bumpy, prickly	b	+	p	+	180
bumpy, waxy	b	+	+	w	2,858
bumpy	b	+	+	+	1,463

Phenotype	Genotypes				Progeny Count
kidney, prickly, waxy	+	k	p	w	1,435
kidney, prickly	+	k	p	+	2,848
kidney, waxy	+	k	+	w	162
kidney	+	k	+	+	583
prickly, waxy	+	+	p	w	9,568
prickly	+	+	p	+	151
waxy	+	+	+	w	3,250
wildtype	+	+	+	+	32

Combined total progeny: 36,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between B and K: [BK] cM
Distance between B and P: [BP] cM
Distance between B and W: [BW] cM
Distance between K and P: [KP] cM
Distance between K and W: [KW] cM
Distance between P and W: [PW] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

BK 28.0 28 BP 22.0 22 BW 20.0 20 KP 41.8 KW 10.0 10 PW 35.4 geneorder kwbp pbwk KWBP PBWK FIB_PLUS

22c2_b63b

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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, mushy, waxy	a	d	m	w	8,286
artsy, dewy, mushy	a	d	m	+	164
artsy, dewy, waxy	a	d	+	w	2,714
artsy, dewy	a	d	+	+	52
artsy, mushy, waxy	a	+	m	w	195
artsy, mushy	a	+	m	+	246
artsy, waxy	a	+	+	w	2,007
artsy	a	+	+	+	2,498

Phenotype	Genotypes				Progeny Count
dewy, mushy, waxy	+	d	m	w	2,350
dewy, mushy	+	d	m	+	1,977
dewy, waxy	+	d	+	w	234
dewy	+	d	+	+	189
mushy, waxy	+	+	m	w	44
mushy	+	+	m	+	2,726
waxy	+	+	+	w	172
wildtype	+	+	+	+	8,146

Combined total progeny: 32,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between A and D: [AD] cM
Distance between A and M: [AM] cM
Distance between A and W: [AW] cM
Distance between D and M: [DM] cM
Distance between D and W: [DW] cM
Distance between M and W: [MW] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

AD 30.3 AM 44.9 AW 18.0 18 DM 20.0 20 DW 15.0 15 MW 32.0 32 geneorder awdm mdwa AWDM MDWA FIB_PLUS

6b74_61d2

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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.

Phenotype	Genotypes				Progeny Count
chummy, fuzzy, horsey, jerky	c	f	h	j	68
chummy, fuzzy, horsey	c	f	h	+	28
chummy, fuzzy, jerky	c	f	+	j	1,001
chummy, fuzzy	c	f	+	+	19
chummy, horsey, jerky	c	+	h	j	305
chummy, horsey	c	+	h	+	227
chummy, jerky	c	+	+	j	381
chummy	c	+	+	+	7

Phenotype	Genotypes				Progeny Count
fuzzy, horsey, jerky	+	f	h	j	3
fuzzy, horsey	+	f	h	+	409
fuzzy, jerky	+	f	+	j	217
fuzzy	+	f	+	+	299
horsey, jerky	+	+	h	j	27
horsey	+	+	h	+	905
jerky	+	+	+	j	32
wildtype	+	+	+	+	72

Combined total progeny: 4,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between C and F: [CF] cM
Distance between C and H: [CH] cM
Distance between C and J: [CJ] cM
Distance between F and H: [FH] cM
Distance between F and J: [FJ] cM
Distance between H and J: [HJ] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

CF 46.2 CH 31.2 CJ 14.0 14 FH 25.0 25 FJ 37.5 HJ 20.0 20 geneorder cjhf fhjc CJHF FHJC FIB_PLUS

bdfa_4ecf

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 R is connected 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 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, fuzzy, rusty, xanthic	a	f	r	x	3,660
artsy, fuzzy, rusty	a	f	r	+	9,684
artsy, fuzzy, xanthic	a	f	+	x	1,553
artsy, fuzzy	a	f	+	+	365
artsy, rusty, xanthic	a	+	r	x	214
artsy, rusty	a	+	r	+	1,371
artsy, xanthic	a	+	+	x	140
artsy	a	+	+	+	18

Phenotype	Genotypes				Progeny Count
fuzzy, rusty, xanthic	+	f	r	x	16
fuzzy, rusty	+	f	r	+	132
fuzzy, xanthic	+	f	+	x	1,332
fuzzy	+	f	+	+	177
rusty, xanthic	+	+	r	x	366
rusty	+	+	r	+	1,490
xanthic	+	+	+	x	9,798
wildtype	+	+	+	+	3,684

Combined total progeny: 34,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between A and F: [AF] cM
Distance between A and R: [AR] cM
Distance between A and X: [AX] cM
Distance between F and R: [FR] cM
Distance between F and X: [FX] cM
Distance between R and X: [RX] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

AF 10.0 10 AR 12.0 12 AX 32.5 FR 20.2 FX 38.6 RX 25.0 25 geneorder farx xraf FARX XRAF FIB_PLUS

7786_9ec9

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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, prickly, rusty, waxy	b	p	r	w	2
bumpy, prickly, rusty	b	p	r	+	1,107
bumpy, prickly, waxy	b	p	+	w	7
bumpy, prickly	b	p	+	+	369
bumpy, rusty, waxy	b	+	r	w	223
bumpy, rusty	b	+	r	+	289
bumpy, waxy	b	+	+	w	21
bumpy	b	+	+	+	6

Phenotype	Genotypes				Progeny Count
prickly, rusty, waxy	+	p	r	w	10
prickly, rusty	+	p	r	+	13
prickly, waxy	+	p	+	w	277
prickly	+	p	+	+	205
rusty, waxy	+	+	r	w	367
rusty	+	+	r	+	7
waxy	+	+	+	w	1,095
wildtype	+	+	+	+	2

Combined total progeny: 4,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between B and P: [BP] cM
Distance between B and R: [BR] cM
Distance between B and W: [BW] cM
Distance between P and R: [PR] cM
Distance between P and W: [PW] cM
Distance between R and W: [RW] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

BP 26.1 BR 20.0 20 BW 12.0 12 PR 43.6 PW 15.0 15 RW 29.6 geneorder pwbr rbwp PWBR RBWP FIB_PLUS

50b3_15e2

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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
artsy, fuzzy, horsey, rusty	a	f	h	r	3,758
artsy, fuzzy, horsey	a	f	h	+	77
artsy, fuzzy, rusty	a	f	+	r	9,031
artsy, fuzzy	a	f	+	+	8,619
artsy, horsey, rusty	a	+	h	r	157
artsy, horsey	a	+	h	+	692
artsy, rusty	a	+	+	r	433
artsy	a	+	+	+	23,948

Phenotype	Genotypes				Progeny Count
fuzzy, horsey, rusty	+	f	h	r	24,086
fuzzy, horsey	+	f	h	+	460
fuzzy, rusty	+	f	+	r	718
fuzzy	+	f	+	+	172
horsey, rusty	+	+	h	r	8,818
horsey	+	+	h	+	9,205
rusty	+	+	+	r	64
wildtype	+	+	+	+	3,762

Combined total progeny: 94,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between A and F: [AF] cM
Distance between A and H: [AH] cM
Distance between A and R: [AR] cM
Distance between F and H: [FH] cM
Distance between F and R: [FR] cM
Distance between H and R: [HR] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

AF 46.1 AH 10.0 10 AR 28.7 FH 39.8 FR 20.0 20 HR 22.0 22 geneorder ahrf frha AHRF FRHA FIB_PLUS

17c6_06b8

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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, dewy, kidney, waxy	c	d	k	w	4,753
chummy, dewy, kidney	c	d	k	+	21,383
chummy, dewy, waxy	c	d	+	w	170
chummy, dewy	c	d	+	+	3,102
chummy, kidney, waxy	c	+	k	w	6,868
chummy, kidney	c	+	k	+	178
chummy, waxy	c	+	+	w	284
chummy	c	+	+	+	95

Phenotype	Genotypes				Progeny Count
dewy, kidney, waxy	+	d	k	w	90
dewy, kidney	+	d	k	+	271
dewy, waxy	+	d	+	w	155
dewy	+	d	+	+	6,859
kidney, waxy	+	+	k	w	3,225
kidney	+	+	k	+	163
waxy	+	+	+	w	21,648
wildtype	+	+	+	+	4,756

Combined total progeny: 74,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between C and D: [CD] cM
Distance between C and K: [CK] cM
Distance between C and W: [CW] cM
Distance between D and K: [DK] cM
Distance between D and W: [DW] cM
Distance between K and W: [KW] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

CD 20.0 20 CK 10.0 10 CW 32.6 DK 28.0 28 DW 14.0 14 KW 40.2 geneorder kcdw wdck KCDW WDCK FIB_PLUS

95e6_2f4e

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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, chummy, nerdy, tipsy	a	c	n	t	159
artsy, chummy, nerdy	a	c	n	+	3,641
artsy, chummy, tipsy	a	c	+	t	134
artsy, chummy	a	c	+	+	2,887
artsy, nerdy, tipsy	a	+	n	t	14,780
artsy, nerdy	a	+	n	+	5,095
artsy, tipsy	a	+	+	t	190
artsy	a	+	+	+	41

Phenotype	Genotypes				Progeny Count
chummy, nerdy, tipsy	+	c	n	t	40
chummy, nerdy	+	c	n	+	215
chummy, tipsy	+	c	+	t	5,057
chummy	+	c	+	+	14,974
nerdy, tipsy	+	+	n	t	2,864
nerdy	+	+	n	+	109
tipsy	+	+	+	t	3,649
wildtype	+	+	+	+	165

Combined total progeny: 54,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between A and C: [AC] cM
Distance between A and N: [AN] cM
Distance between A and T: [AT] cM
Distance between C and N: [CN] cM
Distance between C and T: [CT] cM
Distance between N and T: [NT] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

AC 25.2 AN 12.0 12 AT 43.1 CN 15.0 15 CT 20.0 20 NT 33.5 geneorder anct tcna ANCT TCNA FIB_PLUS

36c2_fcf9

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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
kidney, mushy, nerdy, waxy	k	m	n	w	10,982
kidney, mushy, nerdy	k	m	n	+	4,111
kidney, mushy, waxy	k	m	+	w	221
kidney, mushy	k	m	+	+	1,804
kidney, nerdy, waxy	k	+	n	w	55
kidney, nerdy	k	+	n	+	45
kidney, waxy	k	+	+	w	728
kidney	k	+	+	+	3,440

Phenotype	Genotypes				Progeny Count
mushy, nerdy, waxy	+	m	n	w	3,483
mushy, nerdy	+	m	n	+	734
mushy, waxy	+	m	+	w	41
mushy	+	m	+	+	74
nerdy, waxy	+	+	n	w	1,851
nerdy	+	+	n	+	209
waxy	+	+	+	w	4,231
wildtype	+	+	+	+	10,991

Combined total progeny: 43,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between K and M: [KM] cM
Distance between K and N: [KN] cM
Distance between K and W: [KW] cM
Distance between M and N: [MN] cM
Distance between M and W: [MW] cM
Distance between N and W: [NW] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

KM 20.0 20 KN 29.0 29 KW 44.2 MN 10.0 10 MW 31.6 NW 24.0 24 geneorder kmnw wnmk KMNW WNMK FIB_PLUS

37e9_3257

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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, eery, prickly, yucky	d	e	p	y	1,903
dewy, eery, prickly	d	e	p	+	382
dewy, eery, yucky	d	e	+	y	4,667
dewy, eery	d	e	+	+	15,602
dewy, prickly, yucky	d	+	p	y	40
dewy, prickly	d	+	p	+	21
dewy, yucky	d	+	+	y	103
dewy	d	+	+	+	1,000

Phenotype	Genotypes				Progeny Count
eery, prickly, yucky	+	e	p	y	1,064
eery, prickly	+	e	p	+	113
eery, yucky	+	e	+	y	27
eery	+	e	+	+	32
prickly, yucky	+	+	p	y	15,766
prickly	+	+	p	+	4,885
yucky	+	+	+	y	362
wildtype	+	+	+	+	2,033

Combined total progeny: 48,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between D and E: [DE] cM
Distance between D and P: [DP] cM
Distance between D and Y: [DY] cM
Distance between E and P: [EP] cM
Distance between E and Y: [EY] cM
Distance between P and Y: [PY] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

DE 5.0 5 DP 10.0 10 DY 28.7 EP 14.5 EY 32.5 PY 22.0 22 geneorder edpy ypde EDPY YPDE FIB_PLUS

a933_79ff

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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
artsy, jerky, rusty, yucky	a	j	r	y	5,256
artsy, jerky, rusty	a	j	r	+	16,777
artsy, jerky, yucky	a	j	+	y	40
artsy, jerky	a	j	+	+	364
artsy, rusty, yucky	a	+	r	y	242
artsy, rusty	a	+	r	+	2,353
artsy, yucky	a	+	+	y	489
artsy	a	+	+	+	4,551

Phenotype	Genotypes				Progeny Count
jerky, rusty, yucky	+	j	r	y	4,449
jerky, rusty	+	j	r	+	501
jerky, yucky	+	j	+	y	2,327
jerky	+	j	+	+	268
rusty, yucky	+	+	r	y	356
rusty	+	+	r	+	50
yucky	+	+	+	y	16,823
wildtype	+	+	+	+	5,154

Combined total progeny: 60,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between A and J: [AJ] cM
Distance between A and R: [AR] cM
Distance between A and Y: [AY] cM
Distance between J and R: [JR] cM
Distance between J and Y: [JY] cM
Distance between R and Y: [RY] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

AJ 25.3 AR 18.0 18 AY 20.0 20 JR 10.0 10 JY 40.3 RY 34.4 geneorder jray yarj JRAY YARJ FIB_PLUS

6eea_123d

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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.

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, fuzzy, prickly, tipsy	c	f	p	t	540
chummy, fuzzy, prickly	c	f	p	+	752
chummy, fuzzy, tipsy	c	f	+	t	4,309
chummy, fuzzy	c	f	+	+	6,078
chummy, prickly, tipsy	c	+	p	t	687
chummy, prickly	c	+	p	+	17,898
chummy, tipsy	c	+	+	t	160
chummy	c	+	+	+	7,743

Phenotype	Genotypes				Progeny Count
fuzzy, prickly, tipsy	+	f	p	t	7,647
fuzzy, prickly	+	f	p	+	182
fuzzy, tipsy	+	f	+	t	17,822
fuzzy	+	f	+	+	681
prickly, tipsy	+	+	p	t	5,930
prickly	+	+	p	+	4,355
tipsy	+	+	+	t	730
wildtype	+	+	+	+	486

Combined total progeny: 76,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between C and F: [CF] cM
Distance between C and P: [CP] cM
Distance between C and T: [CT] cM
Distance between F and P: [FP] cM
Distance between F and T: [FT] cM
Distance between P and T: [PT] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

CF 30.5 CP 47.9 CT 15.0 15 FP 24.0 24 FT 20.0 20 PT 39.2 geneorder ctfp pftc CTFP PFTC FIB_PLUS

8527_f05c

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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, bumpy, eery, yucky	a	b	e	y	167
artsy, bumpy, eery	a	b	e	+	198
artsy, bumpy, yucky	a	b	+	y	749
artsy, bumpy	a	b	+	+	943
artsy, eery, yucky	a	+	e	y	31
artsy, eery	a	+	e	+	2,705
artsy, yucky	a	+	+	y	15
artsy	a	+	+	+	1,114

Phenotype	Genotypes				Progeny Count
bumpy, eery, yucky	+	b	e	y	1,112
bumpy, eery	+	b	e	+	21
bumpy, yucky	+	b	+	y	2,845
bumpy	+	b	+	+	29
eery, yucky	+	+	e	y	947
eery	+	+	e	+	751
yucky	+	+	+	y	216
wildtype	+	+	+	+	157

Combined total progeny: 12,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between A and B: [AB] cM
Distance between A and E: [AE] cM
Distance between A and Y: [AY] cM
Distance between B and E: [BE] cM
Distance between B and Y: [BY] cM
Distance between E and Y: [EY] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

AB 34.4 AE 47.1 AY 16.0 16 BE 25.0 25 BY 20.0 20 EY 37.5 geneorder aybe ebya AYBE EBYA FIB_PLUS

84af_91af

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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.

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, fuzzy, kidney, yucky	d	f	k	y	14,818
dewy, fuzzy, kidney	d	f	k	+	4,505
dewy, fuzzy, yucky	d	f	+	y	3,199
dewy, fuzzy	d	f	+	+	298
dewy, kidney, yucky	d	+	k	y	216
dewy, kidney	d	+	k	+	62
dewy, yucky	d	+	+	y	3,140
dewy	d	+	+	+	541

Phenotype	Genotypes				Progeny Count
fuzzy, kidney, yucky	+	f	k	y	512
fuzzy, kidney	+	f	k	+	3,340
fuzzy, yucky	+	f	+	y	100
fuzzy	+	f	+	+	189
kidney, yucky	+	+	k	y	296
kidney	+	+	k	+	3,200
yucky	+	+	+	y	4,486
wildtype	+	+	+	+	15,098

Combined total progeny: 54,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between D and F: [DF] cM
Distance between D and K: [DK] cM
Distance between D and Y: [DY] cM
Distance between F and K: [FK] cM
Distance between F and Y: [FY] cM
Distance between K and Y: [KY] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

DF 15.0 15 DK 26.9 DY 20.0 20 FK 14.0 14 FY 30.5 KY 40.8 geneorder kfdy ydfk KFDY YDFK FIB_PLUS

3091_b23e

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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.

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, dewy, kidney, xanthic	c	d	k	x	507
chummy, dewy, kidney	c	d	k	+	50
chummy, dewy, xanthic	c	d	+	x	3,973
chummy, dewy	c	d	+	+	1,053
chummy, kidney, xanthic	c	+	k	x	23
chummy, kidney	c	+	k	+	4,873
chummy, xanthic	c	+	+	x	33
chummy	c	+	+	+	12,319

Phenotype	Genotypes				Progeny Count
dewy, kidney, xanthic	+	d	k	x	12,452
dewy, kidney	+	d	k	+	36
dewy, xanthic	+	d	+	x	4,971
dewy	+	d	+	+	23
kidney, xanthic	+	+	k	x	1,040
kidney	+	+	k	+	4,054
xanthic	+	+	+	x	42
wildtype	+	+	+	+	551

Combined total progeny: 46,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between C and D: [CD] cM
Distance between C and K: [CK] cM
Distance between C and X: [CX] cM
Distance between D and K: [DK] cM
Distance between D and X: [DX] cM
Distance between K and X: [KX] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

CD 24.5 CK 24.0 24 CX 20.0 20 DK 43.5 DX 5.0 5 KX 39.2 geneorder dxck kcxd DXCK KCXD FIB_PLUS

744f_5864

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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, eery, fuzzy, xanthic	b	e	f	x	310
bumpy, eery, fuzzy	b	e	f	+	235
bumpy, eery, xanthic	b	e	+	x	2,967
bumpy, eery	b	e	+	+	41
bumpy, fuzzy, xanthic	b	+	f	x	4,735
bumpy, fuzzy	b	+	f	+	2,238
bumpy, xanthic	b	+	+	x	15,094
bumpy	b	+	+	+	95

Phenotype	Genotypes				Progeny Count
eery, fuzzy, xanthic	+	e	f	x	87
eery, fuzzy	+	e	f	+	15,482
eery, xanthic	+	e	+	x	2,234
eery	+	e	+	+	4,755
fuzzy, xanthic	+	+	f	x	37
fuzzy	+	+	f	+	3,117
xanthic	+	+	+	x	233
wildtype	+	+	+	+	340

Combined total progeny: 52,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between B and E: [BE] cM
Distance between B and F: [BF] cM
Distance between B and X: [BX] cM
Distance between E and F: [EF] cM
Distance between E and X: [EX] cM
Distance between F and X: [FX] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

BE 14.0 14 BF 29.0 29 BX 10.0 10 EF 38.7 EX 21.9 FX 20.0 20 geneorder ebxf fxbe EBXF FXBE FIB_PLUS

b99f_270e

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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
dewy, fuzzy, nerdy, waxy	d	f	n	w	14,103
dewy, fuzzy, nerdy	d	f	n	+	4,743
dewy, fuzzy, waxy	d	f	+	w	132
dewy, fuzzy	d	f	+	+	65
dewy, nerdy, waxy	d	+	n	w	354
dewy, nerdy	d	+	n	+	1,918
dewy, waxy	d	+	+	w	383
dewy	d	+	+	+	3,280

Phenotype	Genotypes				Progeny Count
fuzzy, nerdy, waxy	+	f	n	w	3,145
fuzzy, nerdy	+	f	n	+	317
fuzzy, waxy	+	f	+	w	2,007
fuzzy	+	f	+	+	346
nerdy, waxy	+	+	n	w	60
nerdy	+	+	n	+	118
waxy	+	+	+	w	4,732
wildtype	+	+	+	+	14,297

Combined total progeny: 50,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between D and F: [DF] cM
Distance between D and N: [DN] cM
Distance between D and W: [DW] cM
Distance between F and N: [FN] cM
Distance between F and W: [FW] cM
Distance between N and W: [NW] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

DF 23.5 DN 15.0 15 DW 39.9 FN 10.0 10 FW 22.0 22 NW 28.7 geneorder dnfw wfnd DNFW WFND FIB_PLUS

a2c1_f6e4

Four-Point Test Cross Problem

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

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

Characteristics of Recessive Phenotypes

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 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 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 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
mushy, prickly, waxy, yucky	m	p	w	y	402
mushy, prickly, waxy	m	p	w	+	75
mushy, prickly, yucky	m	p	+	y	492
mushy, prickly	m	p	+	+	1,715
mushy, waxy, yucky	m	+	w	y	18
mushy, waxy	m	+	w	+	6
mushy, yucky	m	+	+	y	40
mushy	m	+	+	+	234

Phenotype	Genotypes				Progeny Count
prickly, waxy, yucky	+	p	w	y	240
prickly, waxy	+	p	w	+	35
prickly, yucky	+	p	+	y	9
prickly	+	p	+	+	18
waxy, yucky	+	+	w	y	1,744
waxy	+	+	w	+	480
yucky	+	+	+	y	63
wildtype	+	+	+	+	429

Combined total progeny: 6,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between M and P: [MP] cM
Distance between M and W: [MW] cM
Distance between M and Y: [MY] cM
Distance between P and W: [PW] cM
Distance between P and Y: [PY] cM
Distance between W and Y: [WY] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

MP 10.0 10 MW 17.0 17 MY 31.9 PW 25.3 PY 38.2 WY 20.0 20 geneorder pmwy ywmp PMWY YWMP FIB_PLUS

6ba8_a2b4

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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
artsy, dewy, mushy, prickly	a	d	m	p	448
artsy, dewy, mushy	a	d	m	+	2,924
artsy, dewy, prickly	a	d	+	p	12,445
artsy, dewy	a	d	+	+	3,585
artsy, mushy, prickly	a	+	m	p	500
artsy, mushy	a	+	m	+	3,033
artsy, prickly	a	+	+	p	71
artsy	a	+	+	+	65

Phenotype	Genotypes				Progeny Count
dewy, mushy, prickly	+	d	m	p	50
dewy, mushy	+	d	m	+	90
dewy, prickly	+	d	+	p	3,062
dewy	+	d	+	+	489
mushy, prickly	+	+	m	p	3,591
mushy	+	+	m	+	12,395
prickly	+	+	+	p	2,780
wildtype	+	+	+	+	472

Combined total progeny: 46,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between A and D: [AD] cM
Distance between A and M: [AM] cM
Distance between A and P: [AP] cM
Distance between D and M: [DM] cM
Distance between D and P: [DP] cM
Distance between M and P: [MP] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

AD 16.0 16 AM 29.8 AP 41.5 DM 15.0 15 DP 30.5 MP 20.0 20 geneorder admp pmda ADMP PMDA FIB_PLUS

a7d7_c9ca

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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.

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, fuzzy, prickly, xanthic	e	f	p	x	416
eery, fuzzy, prickly	e	f	p	+	9,192
eery, fuzzy, xanthic	e	f	+	x	377
eery, fuzzy	e	f	+	+	49
eery, prickly, xanthic	e	+	p	x	3,250
eery, prickly	e	+	p	+	3,851
eery, xanthic	e	+	+	x	1,754
eery	e	+	+	+	74

Phenotype	Genotypes				Progeny Count
fuzzy, prickly, xanthic	+	f	p	x	59
fuzzy, prickly	+	f	p	+	1,856
fuzzy, xanthic	+	f	+	x	3,977
fuzzy	+	f	+	+	3,305
prickly, xanthic	+	+	p	x	46
prickly	+	+	p	+	345
xanthic	+	+	+	x	9,048
wildtype	+	+	+	+	401

Combined total progeny: 38,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between E and F: [EF] cM
Distance between E and P: [EP] cM
Distance between E and X: [EX] cM
Distance between F and P: [FP] cM
Distance between F and X: [FX] cM
Distance between P and X: [PX] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

EF 47.7 EP 12.0 12 EX 30.8 FP 40.0 40 FX 25.0 25 PX 20.0 20 geneorder epxf fxpe EPXF FXPE FIB_PLUS

0dd5_fcc1

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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, eery, rusty, waxy	a	e	r	w	146
artsy, eery, rusty	a	e	r	+	3,088
artsy, eery, waxy	a	e	+	w	158
artsy, eery	a	e	+	+	1,402
artsy, rusty, waxy	a	+	r	w	68
artsy, rusty	a	+	r	+	118
artsy, waxy	a	+	+	w	3,848
artsy	a	+	+	+	8,227

Phenotype	Genotypes				Progeny Count
eery, rusty, waxy	+	e	r	w	8,127
eery, rusty	+	e	r	+	3,938
eery, waxy	+	e	+	w	86
eery	+	e	+	+	68
rusty, waxy	+	+	r	w	1,369
rusty	+	+	r	+	131
waxy	+	+	+	w	3,083
wildtype	+	+	+	+	143

Combined total progeny: 34,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between A and E: [AE] cM
Distance between A and R: [AR] cM
Distance between A and W: [AW] cM
Distance between E and R: [ER] cM
Distance between E and W: [EW] cM
Distance between R and W: [RW] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

AE 28.0 28 AR 20.0 20 AW 25.0 25 ER 10.0 10 EW 49.6 RW 42.5 geneorder eraw ware ERAW WARE FIB_PLUS

7744_7748

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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
bumpy, eery, rusty, waxy	b	e	r	w	17,732
bumpy, eery, rusty	b	e	r	+	5,451
bumpy, eery, waxy	b	e	+	w	46
bumpy, eery	b	e	+	+	48
bumpy, rusty, waxy	b	+	r	w	184
bumpy, rusty	b	+	r	+	4,255
bumpy, waxy	b	+	+	w	319
bumpy	b	+	+	+	2,004

Phenotype	Genotypes				Progeny Count
eery, rusty, waxy	+	e	r	w	1,986
eery, rusty	+	e	r	+	311
eery, waxy	+	e	+	w	4,205
eery	+	e	+	+	176
rusty, waxy	+	+	r	w	42
rusty	+	+	r	+	44
waxy	+	+	+	w	5,469
wildtype	+	+	+	+	17,728

Combined total progeny: 60,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between B and E: [BE] cM
Distance between B and R: [BR] cM
Distance between B and W: [BW] cM
Distance between E and R: [ER] cM
Distance between E and W: [EW] cM
Distance between R and W: [RW] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

BE 22.4 BR 8.0 8 BW 39.1 ER 15.0 15 EW 20.0 20 RW 33.5 geneorder brew werb BREW WERB FIB_PLUS

61a7_ca50

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 connected 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 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, fuzzy, rusty, yucky	d	f	r	y	235
dewy, fuzzy, rusty	d	f	r	+	548
dewy, fuzzy, yucky	d	f	+	y	659
dewy, fuzzy	d	f	+	+	23,117
dewy, rusty, yucky	d	+	r	y	6,063
dewy, rusty	d	+	r	+	5,160
dewy, yucky	d	+	+	y	109
dewy	d	+	+	+	7,917

Phenotype	Genotypes				Progeny Count
fuzzy, rusty, yucky	+	f	r	y	7,879
fuzzy, rusty	+	f	r	+	111
fuzzy, yucky	+	f	+	y	5,356
fuzzy	+	f	+	+	5,949
rusty, yucky	+	+	r	y	23,391
rusty	+	+	r	+	705
yucky	+	+	+	y	552
wildtype	+	+	+	+	249

Combined total progeny: 88,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between D and F: [DF] cM
Distance between D and R: [DR] cM
Distance between D and Y: [DY] cM
Distance between F and R: [FR] cM
Distance between F and Y: [FY] cM
Distance between R and Y: [RY] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

DF 43.8 DR 27.4 DY 16.0 16 FR 20.0 20 FY 32.0 32 RY 15.0 15 geneorder dyrf fryd DYRF FRYD FIB_PLUS

d9e2_2061

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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
dewy, eery, jerky, prickly	d	e	j	p	1,005
dewy, eery, jerky	d	e	j	+	322
dewy, eery, prickly	d	e	+	p	13
dewy, eery	d	e	+	+	371
dewy, jerky, prickly	d	+	j	p	240
dewy, jerky	d	+	j	+	21
dewy, prickly	d	+	+	p	6
dewy	d	+	+	+	8

Phenotype	Genotypes				Progeny Count
eery, jerky, prickly	+	e	j	p	12
eery, jerky	+	e	j	+	4
eery, prickly	+	e	+	p	23
eery	+	e	+	+	286
jerky, prickly	+	+	j	p	373
jerky	+	+	j	+	13
prickly	+	+	+	p	318
wildtype	+	+	+	+	985

Combined total progeny: 4,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between D and E: [DE] cM
Distance between D and J: [DJ] cM
Distance between D and P: [DP] cM
Distance between E and J: [EJ] cM
Distance between E and P: [EP] cM
Distance between J and P: [JP] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

DE 15.0 15 DJ 20.0 20 DP 36.2 EJ 33.5 EP 48.0 48 JP 18.0 18 geneorder edjp pjde EDJP PJDE FIB_PLUS

533b_e33c

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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.

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
mushy, nerdy, rusty, tipsy	m	n	r	t	185
mushy, nerdy, rusty	m	n	r	+	11,457
mushy, nerdy, tipsy	m	n	+	t	58
mushy, nerdy	m	n	+	+	3,768
mushy, rusty, tipsy	m	+	r	t	165
mushy, rusty	m	+	r	+	427
mushy, tipsy	m	+	+	t	1,779
mushy	m	+	+	+	4,138

Phenotype	Genotypes				Progeny Count
nerdy, rusty, tipsy	+	n	r	t	4,200
nerdy, rusty	+	n	r	+	1,807
nerdy, tipsy	+	n	+	t	431
nerdy	+	n	+	+	165
rusty, tipsy	+	+	r	t	3,734
rusty	+	+	r	+	52
tipsy	+	+	+	t	11,445
wildtype	+	+	+	+	189

Combined total progeny: 44,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between M and N: [MN] cM
Distance between M and R: [MR] cM
Distance between M and T: [MT] cM
Distance between N and R: [NR] cM
Distance between N and T: [NT] cM
Distance between R and T: [RT] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

MN 29.8 MR 44.4 MT 10.0 10 NR 20.0 20 NT 22.0 22 RT 37.6 geneorder mtnr rntm MTNR RNTM FIB_PLUS

55bf_f716

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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, waxy, xanthic	b	f	w	x	308
bumpy, fuzzy, waxy	b	f	w	+	75
bumpy, fuzzy, xanthic	b	f	+	x	183
bumpy, fuzzy	b	f	+	+	1,978
bumpy, waxy, xanthic	b	+	w	x	14,176
bumpy, waxy	b	+	w	+	4,349
bumpy, xanthic	b	+	+	x	167
bumpy	b	+	+	+	4,655

Phenotype	Genotypes				Progeny Count
fuzzy, waxy, xanthic	+	f	w	x	4,627
fuzzy, waxy	+	f	w	+	171
fuzzy, xanthic	+	f	+	x	4,205
fuzzy	+	f	+	+	14,450
waxy, xanthic	+	+	w	x	2,104
waxy	+	+	w	+	155
xanthic	+	+	+	x	55
wildtype	+	+	+	+	342

Combined total progeny: 52,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between B and F: [BF] cM
Distance between B and W: [BW] cM
Distance between B and X: [BX] cM
Distance between F and W: [FW] cM
Distance between F and X: [FX] cM
Distance between W and X: [WX] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

BF 10.0 10 BW 27.0 27 BX 42.4 FW 20.0 20 FX 36.2 WX 18.0 18 geneorder bfwx xwfb BFWX XWFB FIB_PLUS

0a49_a982

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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, dewy, rusty, yucky	a	d	r	y	6,255
artsy, dewy, rusty	a	d	r	+	21,199
artsy, dewy, yucky	a	d	+	y	80
artsy, dewy	a	d	+	+	176
artsy, rusty, yucky	a	+	r	y	2,928
artsy, rusty	a	+	r	+	452
artsy, yucky	a	+	+	y	4,742
artsy	a	+	+	+	449

Phenotype	Genotypes				Progeny Count
dewy, rusty, yucky	+	d	r	y	461
dewy, rusty	+	d	r	+	4,722
dewy, yucky	+	d	+	y	458
dewy	+	d	+	+	2,896
rusty, yucky	+	+	r	y	188
rusty	+	+	r	+	102
yucky	+	+	+	y	21,389
wildtype	+	+	+	+	6,303

Combined total progeny: 72,800

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between A and D: [AD] cM
Distance between A and R: [AR] cM
Distance between A and Y: [AY] cM
Distance between D and R: [DR] cM
Distance between D and Y: [DY] cM
Distance between R and Y: [RY] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

AD 23.5 AR 15.0 15 AY 38.5 DR 10.0 10 DY 20.0 20 RY 27.0 27 geneorder ardy ydra ARDY YDRA FIB_PLUS

d086_525c

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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, eery, nerdy, waxy	a	e	n	w	284
artsy, eery, nerdy	a	e	n	+	30
artsy, eery, waxy	a	e	+	w	5,544
artsy, eery	a	e	+	+	2,125
artsy, nerdy, waxy	a	+	n	w	2,426
artsy, nerdy	a	+	n	+	119
artsy, waxy	a	+	+	w	1,296
artsy	a	+	+	+	148

Phenotype	Genotypes				Progeny Count
eery, nerdy, waxy	+	e	n	w	152
eery, nerdy	+	e	n	+	1,356
eery, waxy	+	e	+	w	109
eery	+	e	+	+	2,458
nerdy, waxy	+	+	n	w	2,087
nerdy	+	+	n	+	5,532
waxy	+	+	+	w	30
wildtype	+	+	+	+	304

Combined total progeny: 24,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between A and E: [AE] cM
Distance between A and N: [AN] cM
Distance between A and W: [AW] cM
Distance between E and N: [EN] cM
Distance between E and W: [EW] cM
Distance between N and W: [NW] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

AE 33.6 AN 24.0 24 AW 20.0 20 EN 15.0 15 EW 49.2 NW 41.6 geneorder enaw wane ENAW WANE FIB_PLUS

7f09_934d

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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.

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 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
eery, prickly, tipsy, xanthic	e	p	t	x	28,581
eery, prickly, tipsy	e	p	t	+	1,030
eery, prickly, xanthic	e	p	+	x	259
eery, prickly	e	p	+	+	94
eery, tipsy, xanthic	e	+	t	x	8,736
eery, tipsy	e	+	t	+	6,441
eery, xanthic	e	+	+	x	151
eery	e	+	+	+	4,471

Phenotype	Genotypes				Progeny Count
prickly, tipsy, xanthic	+	p	t	x	4,529
prickly, tipsy	+	p	t	+	149
prickly, xanthic	+	p	+	x	6,659
prickly	+	p	+	+	8,664
tipsy, xanthic	+	+	t	x	106
tipsy	+	+	t	+	241
xanthic	+	+	+	x	1,070
wildtype	+	+	+	+	28,819

Combined total progeny: 100,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between E and P: [EP] cM
Distance between E and T: [ET] cM
Distance between E and X: [EX] cM
Distance between P and T: [PT] cM
Distance between P and X: [PX] cM
Distance between T and X: [TX] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

EP 39.8 ET 10.0 10 EX 24.4 PT 31.2 PX 20.0 20 TX 16.0 16 geneorder etxp pxte ETXP PXTE FIB_PLUS

be5d_3671

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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.

Phenotype	Genotypes				Progeny Count
chummy, eery, jerky, mushy	c	e	j	m	74
chummy, eery, jerky	c	e	j	+	1,213
chummy, eery, mushy	c	e	+	m	17
chummy, eery	c	e	+	+	155
chummy, jerky, mushy	c	+	j	m	1,305
chummy, jerky	c	+	j	+	1,902
chummy, mushy	c	+	+	m	4,023
chummy	c	+	+	+	271

Phenotype	Genotypes				Progeny Count
eery, jerky, mushy	+	e	j	m	260
eery, jerky	+	e	j	+	4,140
eery, mushy	+	e	+	m	1,887
eery	+	e	+	+	1,332
jerky, mushy	+	+	j	m	133
jerky	+	+	j	+	19
mushy	+	+	+	m	1,199
wildtype	+	+	+	+	70

Combined total progeny: 18,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between C and E: [CE] cM
Distance between C and J: [CJ] cM
Distance between C and M: [CM] cM
Distance between E and J: [EJ] cM
Distance between E and M: [EM] cM
Distance between J and M: [JM] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

CE 16.0 16 CJ 49.9 CM 39.0 39 EJ 37.5 EM 25.0 25 JM 20.0 20 geneorder cemj jmec CEMJ JMEC FIB_PLUS

9550_b8b9

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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
artsy, bumpy, chummy, horsey	a	b	c	h	541
artsy, bumpy, chummy	a	b	c	+	3,588
artsy, bumpy, horsey	a	b	+	h	849
artsy, bumpy	a	b	+	+	5,277
artsy, chummy, horsey	a	+	c	h	25,662
artsy, chummy	a	+	c	+	7,027
artsy, horsey	a	+	+	h	222
artsy	a	+	+	+	102

Phenotype	Genotypes				Progeny Count
bumpy, chummy, horsey	+	b	c	h	115
bumpy, chummy	+	b	c	+	212
bumpy, horsey	+	b	+	h	7,295
bumpy	+	b	+	+	25,767
chummy, horsey	+	+	c	h	5,356
chummy	+	+	c	+	887
horsey	+	+	+	h	3,356
wildtype	+	+	+	+	544

Combined total progeny: 86,800

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between A and B: [AB] cM
Distance between A and C: [AC] cM
Distance between A and H: [AH] cM
Distance between B and C: [BC] cM
Distance between B and H: [BH] cM
Distance between C and H: [CH] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

AB 23.5 AC 15.0 15 AH 37.0 37 BC 10.0 10 BH 20.0 20 CH 27.0 27 geneorder acbh hbca ACBH HBCA FIB_PLUS

b5d8_07f3

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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, dewy, horsey, xanthic	b	d	h	x	6,413
bumpy, dewy, horsey	b	d	h	+	5,903
bumpy, dewy, xanthic	b	d	+	x	19,824
bumpy, dewy	b	d	+	+	1,146
bumpy, horsey, xanthic	b	+	h	x	62
bumpy, horsey	b	+	h	+	2,734
bumpy, xanthic	b	+	+	x	292
bumpy	b	+	+	+	561

Phenotype	Genotypes				Progeny Count
dewy, horsey, xanthic	+	d	h	x	549
dewy, horsey	+	d	h	+	337
dewy, xanthic	+	d	+	x	2,816
dewy	+	d	+	+	49
horsey, xanthic	+	+	h	x	1,185
horsey	+	+	h	+	19,988
xanthic	+	+	+	x	5,826
wildtype	+	+	+	+	6,315

Combined total progeny: 74,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between B and D: [BD] cM
Distance between B and H: [BH] cM
Distance between B and X: [BX] cM
Distance between D and H: [DH] cM
Distance between D and X: [DX] cM
Distance between H and X: [HX] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

BD 10.0 10 BH 40.7 BX 28.0 28 DH 35.4 DX 20.0 20 HX 22.0 22 geneorder bdxh hxdb BDXH HXDB FIB_PLUS

27fa_7760

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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, dewy, mushy, rusty	b	d	m	r	5,170
bumpy, dewy, mushy	b	d	m	+	3,375
bumpy, dewy, rusty	b	d	+	r	17,215
bumpy, dewy	b	d	+	+	535
bumpy, mushy, rusty	b	+	m	r	79
bumpy, mushy	b	+	m	+	127
bumpy, rusty	b	+	+	r	2,621
bumpy	b	+	+	+	70

Phenotype	Genotypes				Progeny Count
dewy, mushy, rusty	+	d	m	r	75
dewy, mushy	+	d	m	+	2,628
dewy, rusty	+	d	+	r	134
dewy	+	d	+	+	66
mushy, rusty	+	+	m	r	538
mushy	+	+	m	+	17,034
rusty	+	+	+	r	3,266
wildtype	+	+	+	+	5,067

Combined total progeny: 58,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between B and D: [BD] cM
Distance between B and M: [BM] cM
Distance between B and R: [BR] cM
Distance between D and M: [DM] cM
Distance between D and R: [DR] cM
Distance between M and R: [MR] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

BD 10.0 10 BM 29.8 BR 14.0 14 DM 38.4 DR 22.6 MR 20.0 20 geneorder dbrm mrbd DBRM MRBD FIB_PLUS

ce0b_83a2

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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
chummy, dewy, horsey, kidney	c	d	h	k	1,819
chummy, dewy, horsey	c	d	h	+	183
chummy, dewy, kidney	c	d	+	k	3,950
chummy, dewy	c	d	+	+	199
chummy, horsey, kidney	c	+	h	k	181
chummy, horsey	c	+	h	+	40
chummy, kidney	c	+	+	k	11,209
chummy	c	+	+	+	4,404

Phenotype	Genotypes				Progeny Count
dewy, horsey, kidney	+	d	h	k	4,396
dewy, horsey	+	d	h	+	11,231
dewy, kidney	+	d	+	k	48
dewy	+	d	+	+	171
horsey, kidney	+	+	h	k	197
horsey	+	+	h	+	4,014
kidney	+	+	+	k	213
wildtype	+	+	+	+	1,745

Combined total progeny: 44,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between C and D: [CD] cM
Distance between C and H: [CH] cM
Distance between C and K: [CK] cM
Distance between D and H: [DH] cM
Distance between D and K: [DK] cM
Distance between H and K: [HK] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

CD 28.0 28 CH 10.0 10 CK 22.0 22 DH 20.0 20 DK 46.4 HK 29.8 geneorder dhck kchd DHCK KCHD FIB_PLUS

6c92_f4c0

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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.

Phenotype	Genotypes				Progeny Count
chummy, eery, horsey, kidney	c	e	h	k	8,055
chummy, eery, horsey	c	e	h	+	113
chummy, eery, kidney	c	e	+	k	22,857
chummy, eery	c	e	+	+	492
chummy, horsey, kidney	c	+	h	k	5,917
chummy, horsey	c	+	h	+	6,794
chummy, kidney	c	+	+	k	226
chummy	c	+	+	+	692

Phenotype	Genotypes				Progeny Count
eery, horsey, kidney	+	e	h	k	703
eery, horsey	+	e	h	+	224
eery, kidney	+	e	+	k	6,796
eery	+	e	+	+	5,918
horsey, kidney	+	+	h	k	498
horsey	+	+	h	+	22,728
kidney	+	+	+	k	112
wildtype	+	+	+	+	7,875

Combined total progeny: 90,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between C and E: [CE] cM
Distance between C and H: [CH] cM
Distance between C and K: [CK] cM
Distance between E and H: [EH] cM
Distance between E and K: [EK] cM
Distance between H and K: [HK] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

CE 30.3 CH 46.2 CK 18.0 18 EH 20.0 20 EK 15.0 15 HK 33.5 geneorder ckeh hekc CKEH HEKC FIB_PLUS

0032_5e8e

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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, jerky, xanthic	c	e	j	x	19
chummy, eery, jerky	c	e	j	+	3,514
chummy, eery, xanthic	c	e	+	x	396
chummy, eery	c	e	+	+	8,493
chummy, jerky, xanthic	c	+	j	x	2,151
chummy, jerky	c	+	j	+	2,543
chummy, xanthic	c	+	+	x	145
chummy	c	+	+	+	606

Phenotype	Genotypes				Progeny Count
eery, jerky, xanthic	+	e	j	x	654
eery, jerky	+	e	j	+	143
eery, xanthic	+	e	+	x	2,587
eery	+	e	+	+	2,151
jerky, xanthic	+	+	j	x	8,661
jerky	+	+	j	+	378
xanthic	+	+	+	x	3,542
wildtype	+	+	+	+	17

Combined total progeny: 36,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between C and E: [CE] cM
Distance between C and J: [CJ] cM
Distance between C and X: [CX] cM
Distance between E and J: [EJ] cM
Distance between E and X: [EX] cM
Distance between J and X: [JX] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

CE 30.5 CJ 45.9 CX 15.0 15 EJ 24.0 24 EX 20.0 20 JX 36.8 geneorder cxej jexc CXEJ JEXC FIB_PLUS

1d5e_1807

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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
artsy, bumpy, horsey, waxy	a	b	h	w	782
artsy, bumpy, horsey	a	b	h	+	1,470
artsy, bumpy, waxy	a	b	+	w	2,207
artsy, bumpy	a	b	+	+	18
artsy, horsey, waxy	a	+	h	w	107
artsy, horsey	a	+	h	+	187
artsy, waxy	a	+	+	w	5,124
artsy	a	+	+	+	66

Phenotype	Genotypes				Progeny Count
bumpy, horsey, waxy	+	b	h	w	64
bumpy, horsey	+	b	h	+	5,106
bumpy, waxy	+	b	+	w	213
bumpy	+	b	+	+	93
horsey, waxy	+	+	h	w	32
horsey	+	+	h	+	2,143
waxy	+	+	+	w	1,550
wildtype	+	+	+	+	838

Combined total progeny: 20,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between A and B: [AB] cM
Distance between A and H: [AH] cM
Distance between A and W: [AW] cM
Distance between B and H: [BH] cM
Distance between B and W: [BW] cM
Distance between H and W: [HW] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

AB 45.2 AH 26.2 AW 18.0 18 BH 25.0 25 BW 32.5 HW 10.0 10 geneorder awhb bhwa AWHB BHWA FIB_PLUS

87ae_4c51

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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, dewy, eery, tipsy	a	d	e	t	10,825
artsy, dewy, eery	a	d	e	+	3,272
artsy, dewy, tipsy	a	d	+	t	30
artsy, dewy	a	d	+	+	13
artsy, eery, tipsy	a	+	e	t	1,932
artsy, eery	a	+	e	+	91
artsy, tipsy	a	+	+	t	775
artsy	a	+	+	+	36

Phenotype	Genotypes				Progeny Count
dewy, eery, tipsy	+	d	e	t	15
dewy, eery	+	d	e	+	772
dewy, tipsy	+	d	+	t	79
dewy	+	d	+	+	1,876
eery, tipsy	+	+	e	t	21
eery	+	+	e	+	38
tipsy	+	+	+	t	3,273
wildtype	+	+	+	+	10,952

Combined total progeny: 34,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between A and D: [AD] cM
Distance between A and E: [AE] cM
Distance between A and T: [AT] cM
Distance between D and E: [DE] cM
Distance between D and T: [DT] cM
Distance between E and T: [ET] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

AD 16.4 AE 5.0 5 AT 20.0 20 DE 12.0 12 DT 35.1 ET 24.5 geneorder deat taed DEAT TAED FIB_PLUS

1651_b388

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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
dewy, kidney, rusty, xanthic	d	k	r	x	44
dewy, kidney, rusty	d	k	r	+	7,927
dewy, kidney, xanthic	d	k	+	x	166
dewy, kidney	d	k	+	+	29,448
dewy, rusty, xanthic	d	+	r	x	989
dewy, rusty	d	+	r	+	379
dewy, xanthic	d	+	+	x	5,771
dewy	d	+	+	+	2,207

Phenotype	Genotypes				Progeny Count
kidney, rusty, xanthic	+	k	r	x	2,258
kidney, rusty	+	k	r	+	5,885
kidney, xanthic	+	k	+	x	373
kidney	+	k	+	+	1,032
rusty, xanthic	+	+	r	x	29,302
rusty	+	+	r	+	163
xanthic	+	+	+	x	8,006
wildtype	+	+	+	+	50

Combined total progeny: 94,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between D and K: [DK] cM
Distance between D and R: [DR] cM
Distance between D and X: [DX] cM
Distance between K and R: [KR] cM
Distance between K and X: [KX] cM
Distance between R and X: [RX] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

DK 20.1 DR 20.0 20 DX 15.0 15 KR 34.2 KX 6.0 6 RX 30.5 geneorder kxdr rdxk KXDR RDXK FIB_PLUS

a8eb_3f86

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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
eery, prickly, tipsy, waxy	e	p	t	w	2,401
eery, prickly, tipsy	e	p	t	+	7,300
eery, prickly, waxy	e	p	+	w	16
eery, prickly	e	p	+	+	92
eery, tipsy, waxy	e	+	t	w	176
eery, tipsy	e	+	t	+	1,795
eery, waxy	e	+	+	w	51
eery	e	+	+	+	1,190

Phenotype	Genotypes				Progeny Count
prickly, tipsy, waxy	+	p	t	w	1,111
prickly, tipsy	+	p	t	+	40
prickly, waxy	+	p	+	w	1,780
prickly	+	p	+	+	201
tipsy, waxy	+	+	t	w	77
tipsy	+	+	t	+	23
waxy	+	+	+	w	7,455
wildtype	+	+	+	+	2,292

Combined total progeny: 26,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between E and P: [EP] cM
Distance between E and T: [ET] cM
Distance between E and W: [EW] cM
Distance between P and T: [PT] cM
Distance between P and W: [PW] cM
Distance between T and W: [TW] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

EP 24.4 ET 10.0 10 EW 20.0 20 PT 16.0 16 PW 40.8 TW 29.0 29 geneorder ptew wetp PTEW WETP FIB_PLUS

4f86_d2ba

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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.

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
artsy, chummy, prickly, xanthic	a	c	p	x	205
artsy, chummy, prickly	a	c	p	+	135
artsy, chummy, xanthic	a	c	+	x	96
artsy, chummy	a	c	+	+	4,182
artsy, prickly, xanthic	a	+	p	x	27,569
artsy, prickly	a	+	p	+	815
artsy, xanthic	a	+	+	x	8,061
artsy	a	+	+	+	4,872

Phenotype	Genotypes				Progeny Count
chummy, prickly, xanthic	+	c	p	x	4,880
chummy, prickly	+	c	p	+	8,269
chummy, xanthic	+	c	+	x	795
chummy	+	c	+	+	27,539
prickly, xanthic	+	+	p	x	4,144
prickly	+	+	p	+	88
xanthic	+	+	+	x	141
wildtype	+	+	+	+	209

Combined total progeny: 92,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between A and C: [AC] cM
Distance between A and P: [AP] cM
Distance between A and X: [AX] cM
Distance between C and P: [CP] cM
Distance between C and X: [CX] cM
Distance between P and X: [PX] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

AC 10.0 10 AP 37.6 AX 21.7 CP 29.1 CX 13.0 13 PX 20.0 20 geneorder acxp pxca ACXP PXCA FIB_PLUS

a919_65c5

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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, fuzzy, nerdy, xanthic	e	f	n	x	8
eery, fuzzy, nerdy	e	f	n	+	4
eery, fuzzy, xanthic	e	f	+	x	11
eery, fuzzy	e	f	+	+	251
eery, nerdy, xanthic	e	+	n	x	1,135
eery, nerdy	e	+	n	+	363
eery, xanthic	e	+	+	x	7
eery	e	+	+	+	172

Phenotype	Genotypes				Progeny Count
fuzzy, nerdy, xanthic	+	f	n	x	186
fuzzy, nerdy	+	f	n	+	7
fuzzy, xanthic	+	f	+	x	395
fuzzy	+	f	+	+	1,175
nerdy, xanthic	+	+	n	x	259
nerdy	+	+	n	+	11
xanthic	+	+	+	x	2
wildtype	+	+	+	+	14

Combined total progeny: 4,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between E and F: [EF] cM
Distance between E and N: [EN] cM
Distance between E and X: [EX] cM
Distance between F and N: [FN] cM
Distance between F and X: [FX] cM
Distance between N and X: [NX] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

EF 14.0 14 EN 22.6 EX 40.8 FN 10.0 10 FX 29.0 29 NX 20.0 20 geneorder efnx xnfe EFNX XNFE FIB_PLUS

2b13_9e4b

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 linked 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 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 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, jerky, tipsy	a	h	j	t	5,466
artsy, horsey, jerky	a	h	j	+	50
artsy, horsey, tipsy	a	h	+	t	17,726
artsy, horsey	a	h	+	+	147
artsy, jerky, tipsy	a	+	j	t	338
artsy, jerky	a	+	j	+	90
artsy, tipsy	a	+	+	t	3,357
artsy	a	+	+	+	2,745

Phenotype	Genotypes				Progeny Count
horsey, jerky, tipsy	+	h	j	t	2,685
horsey, jerky	+	h	j	+	3,393
horsey, tipsy	+	h	+	t	90
horsey	+	h	+	+	322
jerky, tipsy	+	+	j	t	123
jerky	+	+	j	+	17,824
tipsy	+	+	+	t	70
wildtype	+	+	+	+	5,574

Combined total progeny: 60,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between A and H: [AH] cM
Distance between A and J: [AJ] cM
Distance between A and T: [AT] cM
Distance between H and J: [HJ] cM
Distance between H and T: [HT] cM
Distance between J and T: [JT] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

AH 21.7 AJ 20.0 20 AT 10.0 10 HJ 38.9 HT 13.0 13 JT 29.0 29 geneorder htaj jath HTAJ JATH FIB_PLUS

ee95_9ece

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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.

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 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
horsey, kidney, nerdy, waxy	h	k	n	w	4,052
horsey, kidney, nerdy	h	k	n	+	864
horsey, kidney, waxy	h	k	+	w	840
horsey, kidney	h	k	+	+	256
horsey, nerdy, waxy	h	+	n	w	5,059
horsey, nerdy	h	+	n	+	1,134
horsey, waxy	h	+	+	w	12,643
horsey	h	+	+	+	5,240

Phenotype	Genotypes				Progeny Count
kidney, nerdy, waxy	+	k	n	w	5,290
kidney, nerdy	+	k	n	+	12,587
kidney, waxy	+	k	+	w	1,086
kidney	+	k	+	+	4,961
nerdy, waxy	+	+	n	w	224
nerdy	+	+	n	+	840
waxy	+	+	+	w	906
wildtype	+	+	+	+	4,018

Combined total progeny: 60,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between H and K: [HK] cM
Distance between H and N: [HN] cM
Distance between H and W: [HW] cM
Distance between K and N: [KN] cM
Distance between K and W: [KW] cM
Distance between N and W: [NW] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

HK 20.0 20 HN 36.8 HW 25.0 25 KN 24.0 24 KW 37.5 NW 48.5 geneorder nkhw whkn NKHW WHKN FIB_PLUS

1b48_98d4

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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, horsey, mushy, rusty	a	h	m	r	1,836
artsy, horsey, mushy	a	h	m	+	286
artsy, horsey, rusty	a	h	+	r	79
artsy, horsey	a	h	+	+	229
artsy, mushy, rusty	a	+	m	r	7,741
artsy, mushy	a	+	m	+	2,397
artsy, rusty	a	+	+	r	499
artsy	a	+	+	+	3,030

Phenotype	Genotypes				Progeny Count
horsey, mushy, rusty	+	h	m	r	3,050
horsey, mushy	+	h	m	+	525
horsey, rusty	+	h	+	r	2,259
horsey	+	h	+	+	7,699
mushy, rusty	+	+	m	r	219
mushy	+	+	m	+	49
rusty	+	+	+	r	306
wildtype	+	+	+	+	1,796

Combined total progeny: 32,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between A and H: [AH] cM
Distance between A and M: [AM] cM
Distance between A and R: [AR] cM
Distance between H and M: [HM] cM
Distance between H and R: [HR] cM
Distance between M and R: [MR] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

AH 15.0 15 AM 24.0 24 AR 36.8 HM 35.4 HR 45.3 MR 20.0 20 geneorder hamr rmah HAMR RMAH FIB_PLUS

c024_0676

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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
chummy, fuzzy, nerdy, tipsy	c	f	n	t	582
chummy, fuzzy, nerdy	c	f	n	+	97
chummy, fuzzy, tipsy	c	f	+	t	7
chummy, fuzzy	c	f	+	+	28
chummy, nerdy, tipsy	c	+	n	t	344
chummy, nerdy	c	+	n	+	34
chummy, tipsy	c	+	+	t	680
chummy	c	+	+	+	2,289

Phenotype	Genotypes				Progeny Count
fuzzy, nerdy, tipsy	+	f	n	t	2,219
fuzzy, nerdy	+	f	n	+	644
fuzzy, tipsy	+	f	+	t	26
fuzzy	+	f	+	+	324
nerdy, tipsy	+	+	n	t	24
nerdy	+	+	n	+	13
tipsy	+	+	+	t	99
wildtype	+	+	+	+	590

Combined total progeny: 8,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between C and F: [CF] cM
Distance between C and N: [CN] cM
Distance between C and T: [CT] cM
Distance between F and N: [FN] cM
Distance between F and T: [FT] cM
Distance between N and T: [NT] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

CF 18.0 18 CN 26.2 CT 39.8 FN 10.0 10 FT 28.0 28 NT 20.0 20 geneorder cfnt tnfc CFNT TNFC FIB_PLUS

9cbb_063f

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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.

Gene R is connected 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, prickly, rusty	a	k	p	r	26,995
artsy, kidney, prickly	a	k	p	+	43
artsy, kidney, rusty	a	k	+	r	7,300
artsy, kidney	a	k	+	+	38
artsy, prickly, rusty	a	+	p	r	394
artsy, prickly	a	+	p	+	485
artsy, rusty	a	+	+	r	3,643
artsy	a	+	+	+	2,809

Phenotype	Genotypes				Progeny Count
kidney, prickly, rusty	+	k	p	r	2,819
kidney, prickly	+	k	p	+	3,833
kidney, rusty	+	k	+	r	439
kidney	+	k	+	+	362
prickly, rusty	+	+	p	r	46
prickly	+	+	p	+	7,736
rusty	+	+	+	r	41
wildtype	+	+	+	+	27,017

Combined total progeny: 84,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between A and K: [AK] cM
Distance between A and P: [AP] cM
Distance between A and R: [AR] cM
Distance between K and P: [KP] cM
Distance between K and R: [KR] cM
Distance between P and R: [PR] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

AK 17.6 AP 33.6 AR 8.0 8 KP 20.0 20 KR 10.0 10 PR 28.0 28 geneorder arkp pkra ARKP PKRA FIB_PLUS

8e2e_00d4

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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.

Phenotype	Genotypes				Progeny Count
bumpy, fuzzy, horsey, nerdy	b	f	h	n	20
bumpy, fuzzy, horsey	b	f	h	+	50
bumpy, fuzzy, nerdy	b	f	+	n	2,680
bumpy, fuzzy	b	f	+	+	7,324
bumpy, horsey, nerdy	b	+	h	n	1,021
bumpy, horsey	b	+	h	+	115
bumpy, nerdy	b	+	+	n	715
bumpy	b	+	+	+	157

Phenotype	Genotypes				Progeny Count
fuzzy, horsey, nerdy	+	f	h	n	167
fuzzy, horsey	+	f	h	+	737
fuzzy, nerdy	+	f	+	n	149
fuzzy	+	f	+	+	971
horsey, nerdy	+	+	h	n	7,124
horsey	+	+	h	+	2,696
nerdy	+	+	+	n	58
wildtype	+	+	+	+	16

Combined total progeny: 24,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between B and F: [BF] cM
Distance between B and H: [BH] cM
Distance between B and N: [BN] cM
Distance between F and H: [FH] cM
Distance between F and N: [FN] cM
Distance between H and N: [HN] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

BF 16.8 BH 10.0 10 BN 36.9 FH 8.0 8 FN 25.0 25 HN 30.0 30 geneorder bhfn nfhb BHFN NFHB FIB_PLUS

f90e_9c74

Four-Point Test Cross Problem

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

For this problem, a test cross using a fruit fly (Drosophila melanogaster) heterozygous for four 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 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 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 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
horsey, jerky, rusty, tipsy	h	j	r	t	7,288
horsey, jerky, rusty	h	j	r	+	8,159
horsey, jerky, tipsy	h	j	+	t	43
horsey, jerky	h	j	+	+	3,851
horsey, rusty, tipsy	h	+	r	t	26,038
horsey, rusty	h	+	r	+	798
horsey, tipsy	h	+	+	t	418
horsey	h	+	+	+	372

Phenotype	Genotypes				Progeny Count
jerky, rusty, tipsy	+	j	r	t	380
jerky, rusty	+	j	r	+	428
jerky, tipsy	+	j	+	t	800
jerky	+	j	+	+	26,226
rusty, tipsy	+	+	r	t	3,857
rusty	+	+	r	+	51
tipsy	+	+	+	t	8,103
wildtype	+	+	+	+	7,188

Combined total progeny: 94,000

Question

Using the two tables above, determine all six pairwise recombination-based distances (cM) and the gene order.

Distance between H and J: [HJ] cM
Distance between H and R: [HR] cM
Distance between H and T: [HT] cM
Distance between J and R: [JR] cM
Distance between J and T: [JT] cM
Distance between R and T: [RT] cM
Gene order: [geneorder]

Enter each distance to one decimal place, without units (for example, 12.0 or 26.2). Enter the gene order as four letters without spaces or hyphens; either direction is accepted.

HJ 41.0 41 HR 10.0 10 HT 28.0 28 JR 34.4 JT 18.0 18 RT 20.0 20 geneorder hrtj jtrh HRTJ JTRH