Question 39
Chromosomes, DNA and Sex LinkageWhich of the following is a sex-linked character?
- A.Sickle-cell anaemia
- B.Tongue rolling
- C.Skin colour
- D.Colour blindness
Show the answer and explanation
Answer: D (Colour blindness)
Explanation
The gene for colour blindness is carried on the X chromosome, so it is sex-linked.