Biologymedium · Past Paper
If a man with color blindness marries a woman with normal vision (non-carrier), what is the chance their son will be color blind?
A0%
B50%
C100%
D25%
✓ Correct Answer: A — 0%
Color blindness is X-linked. Sons inherit their X chromosome from their mother, who is normal. Thus, the sons will have normal vision.
Share this question