Ques. 1AIPMT 2003
In the ABO system of blood groups, if both antigens are present but no antibody, the blood group of the individual would be
- B
- O
- AB
- A.
Answer
(3) AB
Solution
As per NCERT, blood group AB has both antigens A and B on the RBCs and no antibodies (anti-A or anti-B) in the plasma.
⇒ Group A: antigen A, anti-B; group B: antigen B, anti-A; group O: no antigen, both antibodies.
∴ Both antigens present with no antibody ⇒ blood group AB.
Answer: (3)