A spouse with normal skin pigmentation (dominant feature (A)) had an albino son (no pigment). Determine the genotypes of family members for the indicated trait.
Because an albino son is a recessive trait, which means the aa genotype, and the mother and father have normal skin pigmentation, which means the parents are heterozygous (Aa) for the trait.
Answer: mother – Aa, father – Aa, son – aa
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