A coloured man `(X^(c)Y)` marries a woman who is carrier for haemophilia `(XX^(h))`. Which of the following is true for their progenies ?

Options

A. `25 %` female progenies carry the genes foe both haemophilia and colourblindness
B. `25 %` male progenies carry only the gene for haemophilia
C. `25 %` female progenies carry only the gene for colourblindness
D. all of these

Answer

D

Explanation

When a colourblind man `(X^(c)Y)` marries woman who is carrier for haemophila `(XX^(h))`, then 25 % female progenies will carry genes for both diseases, 25 % female progenies will would carry only the gene for haemophilia and 25 % male progenies would be normal.