In cats, the black (B) gene has three alleles that control the density of eumelanin granules in the hair shaft. The B allele is dominant and produces a black coat. The b allele reduces black to a dark brown, chocolate color in bb homozygotes. The b' allele further reduces melanin density to produce a medium-brown coat in homozygotes called cinnamon in homozygotes. b is dominant to b' so the dominance hierarchy is B > b > b'!. A mating between black and chocolate cats yields kittens of all 3 coat colors (black, chocolate and cinnamon). Use the dropdown menus to indicate parental genotypes:
In cats, the black (B) gene has three alleles that control the density of eumelanin granules in the hair shaft. The B allele is dominant and produces a black coat. The b allele reduces black to a dark brown, chocolate color in bb homozygotes. The b' allele further reduces melanin density to produce a medium-brown coat in homozygotes called cinnamon in homozygotes. b is dominant to b' so the dominance hierarchy is B > b > b'!. A mating between black and chocolate cats yields kittens of all 3 coat colors (black, chocolate and cinnamon). Use the dropdown menus to indicate parental genotypes:
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 cats, the black (B) gene has three alleles that control the density of eumelanin
granules in the hair shaft. The B allele is dominant and produces a black coat.
The b allele reduces black to a dark brown, chocolate color in bb homozygotes.
The b' allele further reduces melanin density to produce a medium-brown coat in
homozygotes called cinnamon in homozygotes. b is dominant to b' so the
dominance hierarchy is B > b > b'.
A mating between black and chocolate cats yields kittens of all 3 coat colors
(black, chocolate and cinnamon). Use the dropdown menus to indicate parental
genotypes:
The genotype of the black parent was
genotype of the chocolate parent was
[Select]
[Select]
and the](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffae4804d-998d-4966-bf0a-5868a8bf6639%2F8597e90c-0f55-49ad-85e4-de7c137342dd%2Fpvcvyhj_processed.png&w=3840&q=75)
Transcribed Image Text:In cats, the black (B) gene has three alleles that control the density of eumelanin
granules in the hair shaft. The B allele is dominant and produces a black coat.
The b allele reduces black to a dark brown, chocolate color in bb homozygotes.
The b' allele further reduces melanin density to produce a medium-brown coat in
homozygotes called cinnamon in homozygotes. b is dominant to b' so the
dominance hierarchy is B > b > b'.
A mating between black and chocolate cats yields kittens of all 3 coat colors
(black, chocolate and cinnamon). Use the dropdown menus to indicate parental
genotypes:
The genotype of the black parent was
genotype of the chocolate parent was
[Select]
[Select]
and the
Transcribed Image Text:Which of the 3 alleles of the B gene described in the previous question (B, b or
b') is most likely to contain a severely damaging mutation like an early frameshift
or nonsense mutation and why?
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