Sex-linked problem: Red-green colorblindness Red-green colorblindness in humans is caused by a sex-linked recessive allele. A color-blind man marries a woman with normal vision whose father was color-blind. Complete the Punnett square to answer the following questions: What is the probability that they will have a color-blind daughter? (X = wild type allele, Xc = color blind allele) Xc Yc XcXc XcY XY XXc 1/2 1/4 3/4 100% Probability of having a colorblind daughter? None
