Blood Groups - Free Essay Examples and Topic Ideas

Blood groups refer to the different types of antigens and antibodies present on the surface of red blood cells. There are four major blood groups: A, B, AB, and O. Type A blood has the A antigen and produces antibodies against the B antigen. Type B blood has the B antigen and produces antibodies against the A antigen. Type AB blood has both antigens but does not produce antibodies against either A or B antigens. Type O blood does not have either A or B antigens and produces antibodies against both A and B antigens. The Rh factor is another important factor in blood typing, which determines whether a person is Rh positive or Rh negative.