Blood Types: ABO System, Frequencies, Significance
What are blood groups? The surface of red blood cells (erythrocytes) consists of various structures such as proteins and lipid compounds. They are called blood group antigens. Each person has a certain type of such antigens and thus a certain blood group. The most important blood group systems are the AB0 and Rhesus systems. In … Blood Types: ABO System, Frequencies, Significance