Albinism (Without Melanin Pigmentation) Is a Recessive Trait

Albinism (without melanin pigmentation) is a recessive trait. A man and woman who both have normal pigmentation have one child out of three who has albinism. What are the genotypes of this child's parents?

A) One parent must be homozygous for the recessive allele; the other parent can be homozygous dominant, homozygous recessive, or heterozygous.
B) One parent must be heterozygous; the other parent can be homozygous dominant, homozygous recessive, or heterozygous.
C) Both parents must be heterozygous.
D) One parent must be homozygous dominant; the other parent must be heterozygous.

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