Question

An X-linked recessive gene (c) produces red-green color blindness. A normal woman whose father was color blind marries a color-blind man.
(a) What are the possible genotypes for the mother of the color-blind man?
(b) What are the possible genotypes for the father of the color-blind man?
(c) What are the chances that the first son will be color blind?
(d) What are the chances that the first daughter will be color blind?

Answer

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