Question

Which of the blood groups can be given to any person?

• A. AB
• B. B
• C. A
• D. O

Answer 1

The correct option is D

O

There are four blood groups in the human population - A, B, AB and O depending on the type of glycoprotein (antigen) present on the surface of the blood corpuscles. People with blood group A produce A antigen, those with blood group B form B antigen, those with blood group AB produce both the antigens and those with blood group O form no antigen. As people with blood group O have no antigen on the surface of their red blood cells, they act as universal donors. Their blood type is compatible with any blood type.