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Colour blindness is rare in females due ...

Colour blindness is rare in females due to its defective gene being sex linked. A colour blind girl is born will be only when :

A

Her mother and maternal grand farther were colour blind

B

Her father and maternal grand father were colour blind

C

Her mother is colour blind and father has normal vision

D

Parents have normal vision but grand parents were colour blind

Text Solution

Verified by Experts

The correct Answer is:
B
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