GENETICS AND EVOLUTION
INHERITANCE AND VARIATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A man marries a woman who has a different blood group from him. They have two children. The children have different blood groups from each other and different blood groups from their parents. What are the genotypes of the parent’s blood groups?
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IAIA and IAIB
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IAIA and IoIo
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IAIB and IBIB
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IAIB and IoIo
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Explanation:
Detailed explanation-1: -Even though both parents still have blood type A, Dad can pass on either his A or his O gene version. Mom can also either pass on her A or her O. Because of this, you can see that there’s 1 in 4 or 25% chance for a child to have OO, or blood type O.
Detailed explanation-2: -Two parents with A blood type can produce a child with either A or O blood types. Two parents with B blood type can produce a child with either B or O blood type.
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