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18. In chickens, when the dominant alleles of the genes for rose comb (R) and pea comb (A) are present together (R_A_), the result is a bird with a walnut comb. Chickens that are homozygous recessive for both genes produce a single comb. A rose-combed bird mated with a walnut- combed bird and produced offspring in the proportion: % walnut : % rose : % pea : % single. What were the genotypes of the parents? Rose comb Pea comb Walnut comb Single comb

18. In chickens, when the dominant alleles of the genes for rose comb (R) and pea comb (A) are present together (R_A_), the result is a bird with a walnut comb. Chickens that are homozygous recessive for both genes produce a single comb. A rose-combed bird mated with a walnut- combed bird and produced offspring in the proportion: % walnut : % rose : % pea : % single. What were the genotypes of the parents? Rose comb Pea comb Walnut comb Single comb

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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18. In chickens, when the dominant alleles of the genes for rose comb (R) and pea comb (A) are present together (R_A_), the result is a bird with a walnut comb. Chickens that are homozygous recessive for both genes produce a single comb. A rose-combed bird mated with a walnut- combed bird and produced offspring in the proportion: 3½ walnut : % rose : ½ pea : % single. What were the genotypes of the parents? won lo Rose comb Реа comb Walnut comb Single comb
Transcribed Image Text:18. In chickens, when the dominant alleles of the genes for rose comb (R) and pea comb (A) are present together (R_A_), the result is a bird with a walnut comb. Chickens that are homozygous recessive for both genes produce a single comb. A rose-combed bird mated with a walnut- combed bird and produced offspring in the proportion: 3½ walnut : % rose : ½ pea : % single. What were the genotypes of the parents? won lo Rose comb Реа comb Walnut comb Single comb
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