Question

describe the possible blood groups of the children of a couple who have blood groups A + and B+ positive
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Answer 1

If A+ parent has gene IaIa and B+ parent has gene IbIb then the child can only be of blood group AB+.
If A+ parent has gene Iai and B+ parent has gene IbIb then the child can be of blood group AB+ and B+.
If A+ parent has gene Iai and B+ parent has gene Ibi then the child can be of blood group AB+, A+, B+, O+.
If A+ parent has gene IaIa and B+ parent has gene Ibi then the child can be of blood group AB+ and A+.
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