Albinism Is a Recessive Trait

question 31

Multiple Choice

Albinism is a recessive trait. A man and woman who both have normal pigmentation have one child out of three who has albinism (without melanin pigmentation) . What are the genotypes of this child's parents?

• A) One parent must be homozygous for the recessive allele; the other parent can be homozygous dominant, homozygous recessive, or heterozygous.
• B) One parent must be heterozygous; the other parent can be homozygous dominant, homozygous recessive, or heterozygous.
• C) Both parents must be heterozygous.
• D) One parent must be homozygous dominant; the other parent must be heterozygous.

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Definitions:

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the agreement or permission given by a bailee, a person or entity in temporary possession of another's property, to perform a certain action with or pertaining to that property.

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