In chickens, the allele for a pea comb (A) is dominant to the allele for a single comb (a).

A mother with the genotype Aa and a father with the genotype Aa produce an offspring.

What is the percent chance that the offspring will have a single comb?

A. 0%

B. 25%

C. 50%

D. 75%

E. 100%

Question

Adam Moreno

Biology

10 January, 17:14

In chickens, the allele for a pea comb (A) is dominant to the allele for a single comb (a).

A mother with the genotype Aa and a father with the genotype Aa produce an offspring.

What is the percent chance that the offspring will have a single comb?

A. 0%

B. 25%

C. 50%

D. 75%

E. 100%

+3

Answers (1)

Know the Answer?

Jenny Molina · Answer 1

The correct answer is option B. "25%".

Explanation:

According to Mendel's laws of Inheritance, the genotype of the offspring from a cross between chickens where the mother has the genotype Aa and the father has the genotype Aa will be 25% AA, 50% Aa and 25% aa. Since the allele for a single comb is recessive, only chickens with a aa genotype will develop a single comb. Therefore, the percent chance that the offspring will have a single comb is equal to 25%.

In chickens, the allele for a pea comb (A) is dominant to the allele for a single comb (a).A mother with the genotype Aa and a father with the genotype Aa produce an offspring.What is the percent chance that the offspring will have a single comb?A. 0%B. 25%C. 50%D. 75%E. 100%

In chickens, the allele for a pea comb (A) is dominant to the allele for a single comb (a).

A mother with the genotype Aa and a father with the genotype Aa produce an offspring.

What is the percent chance that the offspring will have a single comb?

A. 0%

B. 25%

C. 50%

D. 75%

E. 100%