Question

A person with blood group AB has

(A) antigen A and B on RBCs and both anti-A and anti-B antibodies in plasma

(B) antigen A and B on RBCs, but neither anti-A nor anti-B antibodies in plasma

(C) no antigen on RBCs but both anti-A and anti-B antibodies in plasma

(D) antigen A on RBCs and anti-B antibodies in plasma

Answer 1

Correct option (B) antigen A and B on RBCs, but neither anti-A nor anti-B antibodies in plasma

Explanation:

| Blood group | Antigen on R.B.Cs surface | Antibody in plasma |
| A | A | Anti-B |
| B | B | Anti-A |
| AB | A and B | Absent |
| O | Absent | Anti-A and Anti-B |