MCQ IN MEDICINE

Detailed explanation-1: -blood group A – has A antigens on the red blood cells with anti-B antibodies in the plasma. blood group B – has B antigens with anti-A antibodies in the plasma. blood group O – has no antigens, but both anti-A and anti-B antibodies in the plasma. blood group AB – has both A and B antigens, but no antibodies.

Detailed explanation-2: -In the AB blood group, both the antigens A and B are present on the red cells of the individual, and the serum contains neither anti-A nor anti-B antibodies.

Detailed explanation-3: -The four major blood groups are based on whether or not you have two specific antigens–A and B. Doctors call this the ABO Blood Group System. Group A has the A antigen and B antibody. Group B has the B antigen and the A antibody. Group AB has A and B antigens but neither A nor B antibodies.

Detailed explanation-4: -B+ (B positive) if you have B and rhesus antigens. B− (B negative) if you have B antigens but don’t have rhesus antigens. AB+ (AB positive) if you have A, B and rhesus antigens. AB− (AB negative) if you have A and B antigens but don’t have rhesus antigens.

Detailed explanation-5: -The antigens present on our own red blood cells in our own body are termed self-antigens and do not generate an antibody response. Therefore, the answer is a. Important self-antigens on the surface of red blood cells are the A and B antigens of the ABO blood system.