Question

When red blood corpuscles containing both A and B antigens are mixed with your blood serum, they agglutinate. Hence, your blood group is type

• A. A
• B. B
• C. AB
• D. O

Answer 1

Answer: (D)

O

The human blood group type depends on the type of antigen present on erythrocytes. For example, if A antigen is present on the RBCs the blood group will be A type and in the plasma anti B antibodies will be present. The O blood group type has both anti A and anti B antibodies in the plasma. Hence, the antibodies can bind both with A type antigen, as well as B type antigen.