Body Fluids and CirculationHard

Question

A chid of blood group O cannot have prents of blood groups

Options

A.AB and AB /O
B.A and B
C.B and B
D.O and O

Solution

Blood group of the child is determined by allelic genes, ie IAIB and IO are dominant over IO ,so if one of the parent either mothe or father is of bloo group AB, then she or he will have both genes ,ie IA and IB and child of such parent cannot have blood group O.

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