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pinkmink491Lv1
6 Nov 2019
1. Comb shape in chickens represents one of the classic examples of gene interaction. Two gene pairs interact to influence the shape of the comb. The genes for rose comb (R) and pea comb (P) together produce walnut comb. The fully homozygous recessive condition (rrpp) produces the single comb. Assume that a rose-comb chicken is crossed with a walnut-comb chicken and the following offspring are produced: 17 walnut, 16 rose, 7 pea, 6 single.
a. What are the probable genotypes of the parents?
b. Give the genotypes of each of the offspring classes. (show the P-square)
1. Comb shape in chickens represents one of the classic examples of gene interaction. Two gene pairs interact to influence the shape of the comb. The genes for rose comb (R) and pea comb (P) together produce walnut comb. The fully homozygous recessive condition (rrpp) produces the single comb. Assume that a rose-comb chicken is crossed with a walnut-comb chicken and the following offspring are produced: 17 walnut, 16 rose, 7 pea, 6 single.
a. What are the probable genotypes of the parents?
b. Give the genotypes of each of the offspring classes. (show the P-square)
11 Mar 2023
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Keith LeannonLv2
6 Jun 2019
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