Question

In humans the recessive allele "a" results in the lack of the production of the skin pigment melanin. People who are homozygous recessive lack pigment and have white skin, pink eyes, and white hair. This phenotype is referred to albinism. The normal allele for the gene in the pigment production pathway is "A". what phenotypic ratio of offspring is predicted by a cross between a man who is heterozygous (Aa) and an albino woman?

Answer 1

The phenotypic ratio of the offspring from the cross between a heterozygous man and an albino woman would be 2:2, with half of the offspring having normal pigmentation and the other half being albino.

Step-by-step explanation:

The phenotypic ratio of offspring resulting from a cross between a heterozygous (Aa) man and an albino woman would be 2:2. This means that half of the offspring would have normal pigmentation (Aa) and the other half would be albino (aa). The albino phenotype is expressed when an individual is homozygous recessive for the allele that results in the lack of melanin production.