Q. A haemophilic woman marries a normal man, then
A) All the children will be normal
B) All the sons will be haemophilic
C) All the girls will be haemophilic
D) Half girls will be haemophilic
Explanation
Haemophilia is a recessive X-linked disease. A female with defected single X-chromosome is normal but, carrier of disease, and male with defected single X-chromosome is haemophilic.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.