Question

Knowing that Albinism is a recessive trait, what is the probability that heterozygous parents will have a child with albinism?

1) 25%
2) 50%
3) 75%
4) 100%

Answer 1

There is a 25% probability that heterozygous parents will have a child with albinism.

Step-by-step explanation:

In the case of heterozygous parents (Aa x Aa) where albinism is a recessive trait, there is a 25% probability that they will have a child with albinism. This is because both parents have one copy of the recessive allele (a), and there is a 25% chance that both of them will pass on this allele to their child.

The Punnett square for this cross would show that 1 out of 4 offspring would have the genotype aa, which results in albinism.