Principle of Inheritance and VariationHard

Question

A woman with normal vision marries a man with normal vision and gives birth  to a colourblind son Her husband dies and  marries a colourblind man what is the probability of her children having the abnormality

Options

A.50% colourblind sons and  50 colourblind daughters
B.All sons colourblind & daughter carrier
C.All daughter colurblind & sons normal    
D.50% sons colourblind and all daughters normal

Solution

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