question_answer

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

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

B)              \[{{\text{X}}^{h}}{{\text{X}}^{h}}\,\text{and}\,{{\text{X}}^{\text{h}}}\text{Y}\]

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

D)             \[{{\text{X}}^{h}}\text{X}\,\text{and}\,\text{XY}\]

Correct Answer: D

Solution :