A Man and Woman Are Both of Normal Pigmentation and Have

Multiple Choice

A man and woman are both of normal pigmentation and have a one child out of three who is albino (without melanin pigmentation) .Albinism is an autosomal (not sex-linked) recessive trait.What are the genotypes of the albino'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.
E) Both parents must be homozygous dominant.