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In mice, a trait called snub-nose is recessive to a normal nose, a trait called pintail iş dominant to a normal tail, and a trait called jerker (resulting in jerky crawling motions) is recessive to a normal gait. Jerker mice, with a sub-nose, and a pintail were crossed to normal mice. The F1 generation were crossed to jerker mice that have a snub-nose and a normal tail. The outcome of the cross was as follows: 560 jerker, snub-nose, pintail 548 normal gait, normal nose, normal tail 102 jerker, snub-nose, normal tail 104 normal gait, normal nose, pintail 77 jerker, normal nose and normal tail 71 normal gait, snub-nose pintail 11 jerker, normal nose, pintail 9 normal gait, snub-nose and normal tail 1) Looking at the offspring, do you believe the three genes are on the same chromosome or are they unlinked? Support your answer. Construct a genetic map that shows 2) the orientation, 3) the gene order, and 4) the map distances between them. Show all work.

In mice, a trait called snub-nose is recessive to a normal nose, a trait called pintail iş dominant to a normal tail, and a trait called jerker (resulting in jerky crawling motions) is recessive to a normal gait. Jerker mice, with a sub-nose, and a pintail were crossed to normal mice. The F1 generation were crossed to jerker mice that have a snub-nose and a normal tail. The outcome of the cross was as follows: 560 jerker, snub-nose, pintail 548 normal gait, normal nose, normal tail 102 jerker, snub-nose, normal tail 104 normal gait, normal nose, pintail 77 jerker, normal nose and normal tail 71 normal gait, snub-nose pintail 11 jerker, normal nose, pintail 9 normal gait, snub-nose and normal tail 1) Looking at the offspring, do you believe the three genes are on the same chromosome or are they unlinked? Support your answer. Construct a genetic map that shows 2) the orientation, 3) the gene order, and 4) the map distances between them. Show all work.

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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In mice, a trait called snub-nose is recessive to a normal nose, a trait called pintail is dominant to a normal tail, and a trait called jerker (resulting in jerky crawling motions) is recessive to a normal gait. Jerker mice, with a sub-nose, and a pintail were crossed to normal mice. The F1 generation were crossed to jerker mice that have a snub-nose and a normal tail. The outcome of the cross was as follows: 560 jerker, snub-nose, pintail 548 normal gait, normal nose, normal tail 102 jerker, snub-nose, normal tail 104 normal gait, normal nose, pintail 77 jerker, normal nose and normal tail 71 normal gait, snub-nose pintail 11 jerker, normal nose, pintail 9 normal gait, snub-nose and normal tail 1) Looking at the offspring, do you believe the three genes are on the same chromosome or are they unlinked? Support your answer. Construct a genetic map that shows 2) the orientation, 3) the gene order, and 4) the map distances between them. Show all work.
Transcribed Image Text:In mice, a trait called snub-nose is recessive to a normal nose, a trait called pintail is dominant to a normal tail, and a trait called jerker (resulting in jerky crawling motions) is recessive to a normal gait. Jerker mice, with a sub-nose, and a pintail were crossed to normal mice. The F1 generation were crossed to jerker mice that have a snub-nose and a normal tail. The outcome of the cross was as follows: 560 jerker, snub-nose, pintail 548 normal gait, normal nose, normal tail 102 jerker, snub-nose, normal tail 104 normal gait, normal nose, pintail 77 jerker, normal nose and normal tail 71 normal gait, snub-nose pintail 11 jerker, normal nose, pintail 9 normal gait, snub-nose and normal tail 1) Looking at the offspring, do you believe the three genes are on the same chromosome or are they unlinked? Support your answer. Construct a genetic map that shows 2) the orientation, 3) the gene order, and 4) the map distances between them. Show all work.
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