Question

If father shows normal genotype and mother shows a carrier trait for haemophilia

• A. All the female offsprings will be normal.
• B. All the female offsprings will be carriers.
• C. A male offspring has $50$% chances of active disease.
• D. Both A and C.

Answer 1

Answer: (C)

A male offspring has $50$% chances of active disease.

Haemophilia is an inherited genetic disorder. This disorder results in the impairment in the formation of blood clots. It is an X-linked recessive disorder. If the father is normal and the mother is carrier, then the female offsprings will be produced normal. The female offspring will be normal or carrier but will not suffer from the disease. There are 50% chance that the males will develop the diseased state.

Thus, the correct answer is option C.