A person having only the A and B antigens is said to have type AB-negative blood. that contains only the A antigen is called type A, blood that contains only the B antigen is called type B, blood that contains both antigens is called AB, and blood that contains neither A nor B is called type O. As a result, individuals with the 'AB' blood type may receive transfusions of any kind of blood. Genetic Determination of the Agglutinogens. When both A and B agglutinogens are present, the blood is type Aβ. They can also accept the blood types O+ and O- if they are A and B antigen free. So such people can accept A+ and A- blood. A person having an A positive blood type has the antigen A in the red cells. The 'AB' blood type, also known as the "universal receiver" blood type, contains both the A and B antigens on the red blood cells, but contains neither A or B antibodies in the plasma. A blood type (also known as a blood group) is a classification of blood, based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells (RBCs). The ABO blood group system is used to denote the presence of one, both, or neither of the A and B antigens on erythrocytes. Two genes, one on each of two pairedchromosomes, determine the O-A-B blood type. Other blood types are defined in a similar manner. Blood types are based on antigens on the surface of your red blood cells. Antigens are markers on the surface of a blood cell. At a certain blood bank, 35% of the blood donors have type A, 10% have type B, and 5% have type AB. Human blood may contain either or both of two antigens, A and B. Lectins can cause different problems, especially if they are specific to particular blood type. An antigen is a ⦠Any other blood type can adversely affect the immune system. And, in fact, these researchers, like the researchers in China and New York City, found a higher risk for severe illness among individuals with Type A blood and a protective effect for Type O. When only type A agglutinogen is present, the blood is type A.When only type B agglutinogen is present, the blood is type B. Blood is called type A-positive if the individual has the A and Rh but not the B antigen. If the food we eat contains lectins that are incompatible with blood type antigen, the lectins target any organ or body system and begin to agglutinate in the said area. If your blood is A positive (A+), it means that your blood contains type-A antigens with the presence of a protein called the rhesus (Rh) factor. Blood Donation Blood that contains only the A antigen is called type A, blood that contains only the B antigen is called type B, blood that contains both antigens is called type AB, and blood that contains neither antigen is called type O. 4. 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