A man whose father was colour blind marries a woman who had a colour blind mother and normal father. What percentage of male children of this couple will be colour blind ?

Question

Dr. Abubacker · Accepted Answer

[Solution] The man has a normal X (he got Y from his colour-blind father); the woman is a carrier ($X^CX^c$) because her mother was colour blind. Sons get their X from the mother, so 50% are colour blind. Answer (3).

Q. A man whose father was colour blind marries a woman who had a colour blind mother and normal father. What percentage of male children of this couple will be colour blind ?

Explanation

Reviewed by Dr. Abubacker

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