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Solution


Q.

If a colourblind female marries a man whose mother was also colourblind, what are the chances of her progeny having colour blindness     [2022]
1 25%  
2 50%  
3 75%  
4 100%  

Ans.

(4)

If a colourblind female (XcXc) marries a man whose mother is colourblind, (XcY) then

All offspring would be colourblind.