Question

A woman with albinic father marries an albinic man. The proportion of her progeny is

• A. 2 normal : 1 albinic
• B. All normal
• C. All albinic
• D. 1 normal : 1 albinic

Answer 1

Answer: (D)

1 normal : 1 albinic

Parents may have normal pigmentation but still, carry the gene. When both parents carry the gene, and neither parent has albinism, there is a 25% chance at each pregnancy that the baby will be born with albinism. This type of inheritance is called autosomal recessive inheritance.

So, the correct option is '1normal: 1albinic'.