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A colour blind man marries the daughter ...

A colour blind man marries the daughter of a colour blind person. Then in their progeny

A

None of their daughters are colour blind

B

All the sons are colour blind

C

All the daughters are colour blind

D

Half of their sons are colour blind

Text Solution

Verified by Experts

The correct Answer is:
D
Since daughter of a colouriblind persom will be a carrier of the disease and only one of the twio X chromosomes will be bear the rescessive gene for disease, so half of their sons will be colourblind.
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