A husband and wife have normal vision but fathers of both of them were colour blind. Probability of their first daughter to be colour blind is [CBSE PMT 1990]

A husband and wife have normal vision but fathers of both of them were

1.	A husband and wife have normal vision but fathers of both of them were colour blind. Probability of their first daughter to be colour blind is [CBSE PMT 1990]
A.	0.25
B.	0.5
C.	0.75
D.	0
Answer» E.

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A husband and wife have normal vision but fathers of both of them were colour blind. Probability of their first daughter to be colour blind is [CBSE PMT 1990]

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