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Body color in Drosophila is X-linked. Imagine a gene where allele E is dominant and produces gray bodies, while allele e is recessive and produces yellow bodies. If a homozygous yellow female is crossed with a grey male, the progeny would be 3 gray females : 1 yellow male 1 gray female: 1 yellow female: 1 gray male : 1 yellow male all females are gray and all males are yellow. O 9 gray females : 3 yellow females : 3 gray males: 1 yellow male

Body color in Drosophila is X-linked. Imagine a gene where allele E is dominant and produces gray bodies, while allele e is recessive and produces yellow bodies. If a homozygous yellow female is crossed with a grey male, the progeny would be 3 gray females : 1 yellow male 1 gray female: 1 yellow female: 1 gray male : 1 yellow male all females are gray and all males are yellow. O 9 gray females : 3 yellow females : 3 gray males: 1 yellow male

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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Body color in Drosophila is X-linked. Imagine a gene where allele E is dominant and produces gray bodies, while allele e is recessive and produces yellow bodies. If a homozygous yellow female is crossed with a grey male, the progeny would be 3 gray females : 1 yellow male O 1 gray female : 1 yellow female : 1 gray male : 1 yellow male O all females are gray and all males are yellow. 9 gray females : 3 yellow females : 3 gray males : 1 yellow male
Transcribed Image Text:Body color in Drosophila is X-linked. Imagine a gene where allele E is dominant and produces gray bodies, while allele e is recessive and produces yellow bodies. If a homozygous yellow female is crossed with a grey male, the progeny would be 3 gray females : 1 yellow male O 1 gray female : 1 yellow female : 1 gray male : 1 yellow male O all females are gray and all males are yellow. 9 gray females : 3 yellow females : 3 gray males : 1 yellow male
In hamsters the gene for black fur color is on the X chromosome. The dominant allele produces black fur and the recessive allele produces white fur. Oreo is a female hamster with black and white patches of fur. Part 1 Oreo mates with Vanilla, a white, male hamster. Of their female offspring, white fur. Part 2 O 1/4 O 1/2 Oreo mates with Chocolate, a black, male hamster. What fraction of the male offspring do you expect to have patches of black and white fur? 3/4 ✓will have black fur, O 1 will have white fur, and ✓will have patches of black and
Transcribed Image Text:In hamsters the gene for black fur color is on the X chromosome. The dominant allele produces black fur and the recessive allele produces white fur. Oreo is a female hamster with black and white patches of fur. Part 1 Oreo mates with Vanilla, a white, male hamster. Of their female offspring, white fur. Part 2 O 1/4 O 1/2 Oreo mates with Chocolate, a black, male hamster. What fraction of the male offspring do you expect to have patches of black and white fur? 3/4 ✓will have black fur, O 1 will have white fur, and ✓will have patches of black and
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