What are the different blood groups explain each in brief?

Answer 1

Blood groups are classified based on the presence or absence of specific antigens on the surface of red blood cells. The main blood group systems are A, B, AB, and O, which are determined by the ABO blood group system. Group A has A antigens, group B has B antigens, group AB has both A and B antigens, and group O has neither. Additionally, the Rh factor can be positive or negative, further categorizing blood types into eight distinct groups: A+, A-, B+, B-, AB+, AB-, O+, and O-.

Answer 2

Blood groups are classified based on the presence or absence of specific antigens on the surface of red blood cells, primarily following the ABO and Rh systems. The ABO system includes four main groups: A (has A antigens), B (has B antigens), AB (has both A and B antigens), and O (has neither antigen). The Rh system indicates the presence (+) or absence (-) of the Rh factor, commonly referred to as the D antigen. This results in eight possible blood types: A+, A-, B+, B-, AB+, AB-, O+, and O-.