question_answer

A woman has a haemophilic son and three normal children. Her genotype and that of her husband with respect to this gene would be

A)  \[XX\] and \[{{X}^{h}}Y\]            

B)  \[{{X}^{h}}Y\] and \[{{X}^{h}}Y\]

C)  \[{{X}^{h}}{{Y}^{h}}\] and \[XY\]             

D)  \[{{X}^{h}}X\] and \[XY\]

Correct Answer: B

Solution :