[b]Do You Know A blood type (also called a blood group) is a classification of blood based on the presence or absence of inherited antigenic substances on the surface of red blood cells (RBCs). These antigens may be proteins, carbohydrates, glycoproteins or glycolipids, depending on the blood group system, and some of these antigens are also present on the surface of other types of cells of various tissues. Several of these red blood cell surface antigens, that stem from one allele (or very closely linked genes), collectively form a blood group system. The ABO blood group system and the Rhesus blood group system are more likely to cause harmful immunological reactions than the other blood group systems. In the routine blood transfusion work of a blood bank, the presence or absence of the three most significant blood group antigens, the A antigen, the B antigen and the RhD antigen (also known as the Rhesus factor or Rhesus D antigen), is determined. This gives the ABO blood group and the RhD antigen status, which are reflected in the common terminology A positive, O negative, etc. with the capital letters (A, B or O) referring to the ABO blood group, and positive or negative referring to the presence or absence of the RhD antigen of the Rhesus blood group system. In the routine preparation and selection of donor blood for blood transfusion, it is not necessary to determine the status of any more blood groups (or antigens), because antibody screening and cross-matching prior to transfusion, detects if there are any other blood group incompatibilities between potential donor blood and intended recipients. [/b] [b] Charts [b] [img]http://imgplace.com/directory/dir2954/1179576935_5223.jpg[/img] blood cell compatibility [img]http://imgplace.com/directory/dir2954/1179576937_2709.jpg[/img] antibodies and antigens chart at topic im [b]Type O[/b] [quote]Type O - "Hot" - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Population: Roughly 38% of the world is O +ve and 6% O -ve. Traits: Confident and Strong-Willed, Proud, Dedicated, Sociable, Energetic, Extroverted, Frank, Realist, Showy, Flighty, Generalist, Positive, Independent, Risk-Takers, Dislike taking orders, Insecure, Stubborn & Self-Centered.. (read more)[/quote] some of the traits are true and did you know that type o is the [b]"Universal Donor"[/b]