SSC MTS EXAM

Detailed explanation-1: -People with the common blood type O express neither the A nor B antigen, and they are perfectly healthy.

Detailed explanation-2: -ABO Blood Groups ABO antigens are added to N-linked oligosaccharide chains on the VWF subunit. Thus patients with the type O blood group genotype lack the functional glycosyltransferase that adds N-acetylgalactosamine and D-galactose to the H antigen on VWF in blood group A and B subjects, respectively.

Detailed explanation-3: -A type blood has only A antigens on red blood cells. B type blood has only B antigens on red blood cells. AB has both A and B antigens on red blood cells. O has neither A nor B antigens on red blood cells.