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3. You have set up crosses in rabbits to test for linkage between two loci, E and T (controlling ear shape and tail length, respectively). The loci are on the same chromosome. The results are shown below. Assume that sex determination in rabbits works just like in humans and that X-inactivation is not a factor. In both F1 and F2, enough progeny were collected to be confident about the observed proportions. P: Round-ear, short tail male Long-ear, long tail female F1 progeny: All progeny (males and females): Long ears, long tails F1 males F1 females X long ears, long tails: 87 males, 194 females long ears, short tails: 10 males, no females round ears, long tails: 12 males, no females round ears, short tails: 91 males, no females F2 progeny: A) Give the complete genotypes (including phase) of the P and F1 generation animals, using lower case (e, t) for recessive alleles. B) Do the loci show linkage? If so, give the map distance, clearly showing how you calculated it. (No need for x^2 analysis.)

3. You have set up crosses in rabbits to test for linkage between two loci, E and T (controlling ear shape and tail length, respectively). The loci are on the same chromosome. The results are shown below. Assume that sex determination in rabbits works just like in humans and that X-inactivation is not a factor. In both F1 and F2, enough progeny were collected to be confident about the observed proportions. P: Round-ear, short tail male Long-ear, long tail female F1 progeny: All progeny (males and females): Long ears, long tails F1 males F1 females X long ears, long tails: 87 males, 194 females long ears, short tails: 10 males, no females round ears, long tails: 12 males, no females round ears, short tails: 91 males, no females F2 progeny: A) Give the complete genotypes (including phase) of the P and F1 generation animals, using lower case (e, t) for recessive alleles. B) Do the loci show linkage? If so, give the map distance, clearly showing how you calculated it. (No need for x^2 analysis.)

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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3. You have set up crosses in rabbits to test for linkage between two loci, E and T (controlling ear shape and tail length, respectively). The loci are on the same chromosome. The results are shown below. Assume that sex determination in rabbits works just like in humans and that X-inactivation is not a factor. In both F1 and F2, enough progeny were collected to be confident about the observed proportions. P: Round-ear, short tail male Long-ear, long tail female F1 progeny: All progeny (males and females): Long ears, long tails F1 males F1 females long ears, long tails: 87 males, 194 females long ears, short tails: 10 males, no females round ears, long tails: 12 males, no females round ears, short tails: 91 males, no females F2 progeny: A) Give the complete genotypes (including phase) of the P and F1 generation animals, using lower case (e, t) for recessive alleles. B) Do the loci show linkage? If so, give the map distance, clearly showing how you calculated it. (No need for x^2 analysis.)
Transcribed Image Text:3. You have set up crosses in rabbits to test for linkage between two loci, E and T (controlling ear shape and tail length, respectively). The loci are on the same chromosome. The results are shown below. Assume that sex determination in rabbits works just like in humans and that X-inactivation is not a factor. In both F1 and F2, enough progeny were collected to be confident about the observed proportions. P: Round-ear, short tail male Long-ear, long tail female F1 progeny: All progeny (males and females): Long ears, long tails F1 males F1 females long ears, long tails: 87 males, 194 females long ears, short tails: 10 males, no females round ears, long tails: 12 males, no females round ears, short tails: 91 males, no females F2 progeny: A) Give the complete genotypes (including phase) of the P and F1 generation animals, using lower case (e, t) for recessive alleles. B) Do the loci show linkage? If so, give the map distance, clearly showing how you calculated it. (No need for x^2 analysis.)
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