MICROANATOMY

Detailed explanation-1: -Group AB has no antibodies as the RBCs have both A and B surface antigens which are recognised as non foreign proteins. Group O however, has antibodies to both A and B antigens.

Detailed explanation-2: -ABO blood grouping is based on differences in the type of glycoprotein (protein with carbohydrates attached) present on the surface of red blood cells. Type A individuals have type A glycoproteins; Type B individuals have type B glycoproteins; Type AB individuals have both; and Type O individuals have neither.

Detailed explanation-3: -There are 4 main blood groups defined by the ABO system: 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.

Detailed explanation-4: -Blood group B has B antigens with anti-A antibodies in the plasma. Blood group A has A antigens on the red blood cells with anti-B antibodies in the plasma. This combination of antigens and antibodies determine which blood type you can be safely given for medical purposes.