Principle of Inheritance and VariationHard

Question

A normal woman whose fathr was colourblind is married to a normal man. The sons wouuld be

Options

A.75% colourbind
B.50% colourbind
C.all mormal
D.all colourbind

Solution

The genotype of normal woman eith colourblind father = XXC
The genotype of normal man = XY
       
    ∴ 50 % of the sons would be colourblind.

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