Question Detail
Question
A couple with normal skin colour has an albino son who resembles the mother. This suggests: a. The father who contributed the Y-chromosome is responsible b. The child is illegitimate c. Both parents must be heterozygous d. The mother, a heterozygous carrier is responsible
Correct Answer
Option C is the correct answer.
Detailed Explanation
Albinism is an autosomal recessive trait. For a couple with normal skin color to have an albino child, both parents must be carriers (heterozygous, Aa). They each passed on the recessive allele (a) to the child. The resemblance to the mother is irrelevant to the genetics.
Hint
Recessive traits appear only when both parents contribute the recessive allele.