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lord [1]
3 years ago
8

The allele for dimples (D) is dominant to the allele for no dimples (d). A man heterozygous for dimples marries a women who is a

lso heterozygous for dimples. What is the mans genotype and the woman genotype .
Biology
1 answer:
makvit [3.9K]3 years ago
7 0

Man's genotype is Dd and women's genotype Dd.

Man's phenotype= dimple

woman's phenotype =dimple

Explanation:

Dimples are usually considered a dominant trait, this means that  the presence of a dominant allele will pass the trait of the dimple to the progeny.

Dimples are dominant traits that are said to be irregular as the trait appearance is affected by other genes also.

The allele dominant for dimple will pass the trait and those with recessive allele will have no dimple is the logic.

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Here, given-

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Also the alleles are in equilibrium in a Hardy-Weinberg population. The frequency of individuals that are homozygous for this allele are= 0.49.

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p + q = 1\\0.3 + q= 1\\q= 1- 0.3\\\\q= 0.7

Then to find the frequency of the individuals homozygous for this allele the following formula needs to be used-

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Thus, the individuals homozygous for the allele can be calculated by q^{2} = (0.7)^{2} \\= 0.49

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