Albinism is a recessive trait. An albino man has children with a non-albino woman whose mother...

Albinism is a recessive trait. An albino man has children with a non-albino woman whose mother was albino and father was not. What is the chance their child will be albino?

Expert Solution

Albinism is an autosomal recessive disorder which means that only homozygous recessive genotype will show the disorder.The heterozygous genotype will be normal but will serve as carrier since the recessive gene is masked by presence of normal dominant gene.Even if just one parent has the gene and the other parent has normal pigment gene,their children won't have oculocutaneous albinism.

According to the question mother of normal woman is albino(aa).since the woman is normal,she would have received the affected allele from her mother which is masked by presence of dominant alllele (A) and she has normal phenotype but Aa genotype (carrier).

Parent generation: aa (albino man)×Aa (carrier woman)

So in F1 generation = 1normal child and 1albino willl be there

gladiator answered 2 years ago

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Albinism is a recessive trait. An albino man has children with a non-albino woman whose mother...

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