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Question

The possible blood groups of children born to parents having A × AB groups are

A
O, A, B
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B
O, A, B, AB
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C
O, A
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D
A, B, AB
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Solution

The correct option is D A, B, AB
Genotype of the parent having blood group A is AO
Genotype of the parent having AB blood group is AB.
P generation : AO x AB
Gametes : A O A B
F1 generation : AA AO AB BO
Phenotypes : (blood grp) (A) (AB) (B)
Thus, possible blood groups of children can be A, B or AB.

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