HEREDITY
INCOMPLETE DOMINANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A man of heterozygous blood group A and a woman of blood group AB have a child. What are the chances of them having a child with blood group B?
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25%
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50%
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100%
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75%
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Explanation:
Detailed explanation-1: -Final answer: A, B, AB, and O are the possible blood groups of offspring when a man with blood group ‘A’ marries a woman with blood group ‘B’.
Detailed explanation-2: -One parent with A and another with B can produce a child with A, B, AB or O blood types. If one parent has A and another has AB, they can either produce a child with A, B or AB blood types.
Detailed explanation-3: -IA i x IA IB = IA IA (A Blood group), IB i (B Blood group) or IA IB (AB Blood Group), therefore O blood group would not be possible. Thus, the correct answer is option D.
Detailed explanation-4: -The chance for AB blood group is 37.5% .
There is 1 question to complete.