Question 50
Chromosomes, DNA and Sex LinkageWhich of these physiological variations is sex-linked?
- A.albinism
- B.blood groups
- C.sickle-cell anaemia
- D.haemophilic condition
Show the answer and explanation
Answer: D (haemophilic condition)
Explanation
The gene for haemophilia is carried on the X chromosome, so it is sex-linked and mostly affects males.