Question

In chicken the allele for a pea vomb Aa is dominant to the allele for a single comb (a) A mother with the genotype Aa And a father with the genotype Aa produces an offspring . What is the percent chance that the offspring will have a single comb

Answer 1

Answer:

boy that's hard

Explanation:

sorry.

hope it helsp soorry

Answer 2

The percent chance that the offspring will have a single comb is 25%.

• It is given that the chicken allele for pea comb is dominant. While single comb is recessive.
• Mother has the genotype of Aa. Father has the genotype of Aa. (Both are heterogeneous dominant.)
• The genotype of the cross between the mother and father can be found out by filling the Punnett square as follows-

      A        a

A     AA      Aa

a      Aa      aa

• As seen from the above diagram, the genotypic ratio is - AA : Aa : aa = 1 : 2 : 1.
• The heterogeneous genotype will show the dominant trait.
• Hene, the phenotypic ratio will be - pea comb : single comb = 3 : 1
• Thus, 25% of offspring will have a single comb.