Biologymedium · Past Paper
If a color-blind man marries a woman with normal vision (homozygous), what is the probability that their son will be color-blind?
A0%
B25%
C50%
D100%
✓ Correct Answer: A — 0%
Color blindness is X-linked recessive. A son gets his X chromosome from his mother, who is normal, so he will have normal vision.
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