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(B) Albinism is an autosomal recessive trait. Let $A$ be the allele for normal skin pigmentation and $a$ be the allele for albinism.An albino man must

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Heterozygous normal

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(B) Albinism is an autosomal recessive trait. Let $A$ be the allele for normal skin pigmentation and $a$ be the allele for albinism.An albino man must have the genotype $aa$.$A$ normal woman can be either $AA$ or $Aa$.If the woman were $AA$ (homozygous normal),all offspring would be $Aa$ (normal phenotype).If the woman is $Aa$ (heterozygous normal),the cross $Aa 	imes aa$ results in $50\%$ $Aa$ (normal) and $50\%$ $aa$ (albino) offspring.Since the offspring are half albino and half normal,the woman must be heterozygous normal $(Aa)$.

If a normal woman marries an albino man and their offspring are half albino and half normal,then the woman is:

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