Biology for IGCSE & O level - Inheritance (Section 5 - No. 37)
If a man with normal vision marries a woman who is a carrier for color blindness, what is the probability that their daughter will be color blind?
0%
25%
50%
100%
คำอธิบาย
A daughter would need to inherit an affected X chromosome from both parents to be colorblind, which is impossible in this case.