In sheep, the allele for belly fur (A) is dominant to the allele for no belly fur (a). A mother with the genotype As and the father with the genotype As produce an offspring. What is the percent chance the offspring with have no belly fur

Question

Yaritza Frey

Biology

8 April, 19:00

In sheep, the allele for belly fur (A) is dominant to the allele for no belly fur (a). A mother with the genotype As and the father with the genotype As produce an offspring. What is the percent chance the offspring with have no belly fur

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Answers (1)

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Rosemary Parks · Answer 1

25%

Explanation:

In sheep, the allele for belly fur (A) is dominant to the allele for no belly fur (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 NO belly fur?

Allele A is dominant over allele a.

Genotype of mother = Aa

Genotype of father = Aa

Crossing Aa and Aa:

Aa x Aa = AA, 2Aa, and aa

Since A is dominant over a, both AA and Aa have belly fur.

Hence, the ratio of the offspring with belly fur to those without belly fur is 3:1.

Percentage of the offspring without belly fur is 25%.