Mother and father of a person with 0 blood group have A and B blood group respectively. What would be the genotype of both mother and father?
A
Mother is homozygous for A blood group and father is heterozygous for B.
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B
Mother is heterozygous for A blood group and father is homozygous for B.
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C
Both mother and father are heterozygous for A and B blood group, respectively.
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D
Both mother and father are homozygous for A and B blood group, respectively.
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Solution
The correct option is C Both mother and father are heterozygous for A and B blood group, respectively. If any of the two parents have homozygous blood group, it will be inherited in their offsprings. So, if the parents have heterozygous blood groups A and B respectively, then the offsprings can have O blood group.