First slide

Inheritance of One Gene

Question

Which one of the following blood groups is not possible in children from parents with combination B × AB ?

Easy

A

A
B

B
C

AB
D

O

Solution

If the parents are having blood groups B and AB then O blood group is not possible. This is because the AB blood group has a genotype of I^AI^B and B blood group can have genotype I^BI^B or I^Bi. Therefore, the possible blood groups in the offspring are A, B, AB but O blood group is not possible.

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