Albinism (without melanin pigmentation) is a recessive trait. A man and woman both show normal pigmentation, but both have one parent who has albinism. What is the probability that their first child will have albinism?
A) 0
B) 1/2
C) 1/4
D) 1

Question

Quizplus · Accepted Answer

Both parents are carriers of the recessive allele for albinism, meaning they each have a 50% chance of passing it on to their offspring. The chance that both parents will pass on the recessive allele is 1/2 * 1/2 = 1/4, meaning there is a 25% chance that their first child will express the disorder.

Albinism (Without Melanin Pigmentation) Is a Recessive Trait