a) A
b) O
c) AB
d) None
b) O
c) AB
d) None
Ans- [C]
Explanation-
Blood Group | Antigen |
A | Has only A antigen on red cells (and B antibody in the plasma) |
B | Has only B antigen on red cells (and A antibody in the plasma) |
AB | Has both A and B antigens on red cells (but neither A nor B antibody in the plasma) |
O | Has neither A nor B antigens on red cells (but both A and B antibody are in the plasma) |
Blood group is determined by the antigen present on RBC. As you can see, blood group A has only antigen A on RBCs. Therefore, baby of both the parents will either have antigen A on its blood cells or no antigen on it because antigen B is absent in both the parents.
Thus, either it will have blood group A or O. It can not have blood group B or AB.
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