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Question : Sita and Ram have their first child .Sita knows her blood type is A, but ram does not known his blood type. However, Ram knows that both his mother and father have type B blood. The first child is boy named kush. Kush has type O blood. Sita and ram do not understand how this happened . Which of the following is the best explanation?

Answer»

Sita's GENOTYPE is AA and Ram's genotype is OO,thus, skip expresses the O phenotype
Sita's genotype is AO and Ram's genotype is OO, thus, skip expresses the O phenotype
Because Ram's parents are both TYPE B, Ram is not Khus's father
Khus's blood type will NEED to be checked after his first month of life, If sita and ram want to known his blood type, as it takes about a month for the blood type to develop in a newborn child

Answer :B


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