Albinism is a recessive trait where an individual does not produce the pigment melanin. A man and woman both produce melanin, but both have one parent with 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

Since albinism is a recessive trait, both parents must be carriers (heterozygous) to have a parent with albinism. The Punnett square for two heterozygous parents (Aa x Aa) shows that there is a 1/4 chance for an offspring to be aa (albino).

Albinism Is a Recessive Trait Where an Individual Does Not