Q. If a colour-blind man marries a woman who is homozygous for normal vision, the probability of their son being colour blind is
A) 0
B) 0.5
C) 0.75
D) 1
Explanation
[Solution] Sons receive their X from the mother, who is $X^CX^C$, so no son is colour blind. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.