Problem: If a man with full color vision has a child with a woman with a full color vision whose father was red-green color blind (cb), what is the probability that their first child is colorblind?A. 1/2B. 1/3C. 1/4D. 1/6E. 1/8

FREE Expert Solution

For the computation of chances in the pedigree, the genotype of the parents should be determined first. In this pedigree, the mother of the individual in question is a daughter of an afflicted father. Since this is an X-linked trait, and the daughters are definite recipients of the father's X chromosome, the mother is a definite carrier of the recessive allele.

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Problem Details

If a man with full color vision has a child with a woman with a full color vision whose father was red-green color blind (cb), what is the probability that their first child is colorblind?

A. 1/2

B. 1/3

C. 1/4

D. 1/6

E. 1/8