Both husband and wife have normal vision though their fathers were colour-blind. The probability of their daughter becoming colour-blind is
A) 0%
B) 25%
C) 50%
D) 75%
Correct Answer:
A
Solution :
The probability of the daughter becoming colour-blind arises only when the father is also colour-blind. So, probability of their daughter becoming colour- blind is 0 %. Hence, the correct option is [a].