A Woman Heterozygous for Color Blindness (An X-Linked Recessive Allele)

question 53

Multiple Choice

A woman heterozygous for color blindness (an X-linked recessive allele) marries a man with normal color vision.What is the probability that their first child will be color blind?

• A) 25%
• B) 50%
• C) 75%
• D) 100%
• E) none of these

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