Albinism (lack of skin and hair pigmentation) is caused by a recessive autosomal allele. A woman and man, both normally pigmente d, have an albino child together. For this trait, what is the genotype of the albino child?
1 answer:
Answer: The genotype of the child is aa
Explanation:
Both parents are normally pigmented but the child has albinism. We know that albinism is a recessive trait.
This tells us that the parents were heterozygous for albinism (Aa)
Each parent carried the recessive allele for albinism and passed it down to their child.
The parents are normally pigmented because the dominant allele (normal) masked the recessive albinism allele.
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