During blood transfusion, agglutination may occur as a result of the reaction between
A. contrasting antigens and antibodies B. two different antigens C. two different antibodies D. similar antigens and antibodies
Correct Answer: D
Explanation
For example, take the blood group A, it has antigen A and antibody B. When the anti-A antibody is used on this blood group, it causes a clumping. The anti-A antibody contains Antigen A. Hence, the clumping which is called AGGLUTINATION.