Question

Which of the following is/are true about ABO blood antigens?

1. They are present on mitochondrial surface of WBCs.

2. They are found free floating in the cytoplasm of WBCs.

3. They are present on the surface of RBCs.

4. They are present in RBC cytoplasm.

• A. 1 and 3
• B. 2 and 4
• C. only 4
• D. only 3

Answer 1

The correct option is D

only 3

ABO blood antigens are present on the surface of red blood cells. If a person has B antigen on the surface of RBC, The person is said to have B blood group.