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A woman with type A blood is claiming that a man with type AB blood is the father of her child who is type B.

Could this man be the father of the child? _______________ Show the possible crosses; remember that the woman
can have AA or AO genotypes.
Assuming that he is the father, what must the mother's genotype be? _____

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Answer:

Could this man be the father of the child? Yes.

Possible crosses:

Man: AB

Woman: AA --> Child: AB

Woman: AO --> Child: B

Assuming that he is the father, the mother's genotype must be AO.

Step-by-step explanation:

Yes, it is possible that the man with AB blood is the father of the child who is type B. This is because type B blood can be produced from a combination of type A and type B alleles. The man's blood type, AB, is a result of having both type A and type B alleles.

If the man is the father, the mother's genotype must be AO (having one A allele and one O allele). This means that she is a carrier of both type A and type O blood and can pass either type A or type O to her child. The child's blood type, B, can result from inheriting a type B allele from the father and a type A allele from the mother.

User Anupriya Jaju
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