Question

In a marriage, the male belongs to A blood group and the female AB group. They cannot have a progeny of

1) A group
2) B group
3) AB group
4) O group
​

Answer 1

Answer:

D

Explanation:

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Answer 2

In a marriage, the male belongs to the A blood group and the female AB group. They cannot have a progeny of 2) B group.

Explanation of the statement:

• Genotypes of two men, one homozygous for the A blood group IAIA and the other heterozygous for A blood group IAI.
• A, AB, and B blood groups are all produced in the offspring of a heterozygous A blood group male and an AB blood group female.

• On the other side, no offspring of a cross between a homozygous man with blood type A, IAIA, and a woman with the blood group AB, IAIB, will have the blood group B.
• A child with the blood type B, therefore, indicates that a male is heterozygous for A.

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