JAMB Biology 1998 Question 42

Question 42

Chromosomes, DNA and Sex Linkage

A sex-linked character cannot be passed on directly from

  1. A.father to son
  2. B.mother to daughter
  3. C.mother to son
  4. D.father to daughter.
Show the answer and explanation

Answer: A (father to son)

Explanation

Sex-linked genes are on the X chromosome, and a father gives his son a Y chromosome, not his X.