OBJECTIVE LIFE SCIENCE
GENETICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Suppose a father with blood type A and a mother with blood type B have a child of type O. What is the genotype of the father and mother?
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Father IAi:Mother IBi
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Father ii:Mother IBi
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Father IAi:Mother IBIB
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Father IAIB:Mother ii
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Explanation:
Detailed explanation-1: -Due to codominance of “IA” and “IB” alleles, the genotype “IAIB” produce “AB” blood group respectively. Thus, the six genotypes give total four phenotypes. Hence, parents with A and B blood group can have child with A, B, AB and O blood groups.
Detailed explanation-2: -Parents who are type B and type A blood do have the possibility of having a child with type O blood. This is because the A and B alleles are dominant over O alleles. So a parent could have a genotype of AO for type A blood and a genotype of BO for B blood type.
Detailed explanation-3: -Answer and Explanation: Yes, it is possible that a father with an A-blood type and a mother with a B-blood type could have offspring that have an O-blood type.
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