Albinism in humans is inherited as a recessive trait (s). In a family where the father is albino and the mother has normal pigmentation, the first child has normal pigment development and the second is albino. Determine the genotypes of the parents and the child with normal pigmentation
1. Since the offspring has a child – albino (aa), and the father has the genotype aa, the mother – Aa (the child – albino receives one gamete from the father, the other a – from the mother)
2. Genotypes of parents: father – aa (albino), mother – Aa (normal pigmentation). The maternal organism forms two types of gametes: A, a; paternal one type of gametes a.
Answer: mother – Aa, father – aa, children – Aa.
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