A mother has type A blood and a father has type B blood. If their baby has type O blood, what is the genotype of the parents?

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asked Nov 7, 2020 135k views

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Massimiliano Janes · Answer 1 · 2020-11-09T00:14:23+0000

Each biological parent donates one of their two ABO alleles to their child. A mother who is blood type O can only pass an O allele to her son or daughter. A father who is blood type AB could pass either an A or a B allele to his son or daughter.

A mother has type A blood and a father has type B blood. If their baby has type O blood, what is the genotype of the parents?

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