Question

Haemophilic man marries a normal woman. Their offsprings will be

• A. All haemophilic
• B. All boys haemophilic
• C. All girls haemophilic
• D. All normal

Answer 1

The correct option is D All normal

Haemophilia is mainly caused due to the genetic mutation. It is mutation brings the changes in the gene which is required for clotting of blood. It is a recessive x linked. X chromosome received from mother has the gene for normal blood clotting while X chromosome from her father has the gene for hemophilia. The gene from the mother is dominant. Therefore, female heterozygous are always carriers. When a haemophilic man marries a normal woman, produces carrier girls and normal boys, i.e., all their offspring will be normal.

So, the correct answer is option D.