What is mean by blood group antigens?
Blood group antigens are carbohydrates that are attached to proteins or lipids. An antigen is a substance foreign to the body that causes an immune response. That means that your body makes antibodies against type B antigens. (If your blood type is positive or negative, that refers to the Rh factor.)
What is the function of blood group antigen?
Blood group antigens are found on the surface of red blood cells and are ignored by the immune system. But antigens of another blood type will be seen as foreign, and attacked by antibodies. Antibodies are produced by white blood cells and used by the immune system to identify and attack foreign substances in the body.
What are the human blood antigen groups?
All humans and many other primates can be typed for the ABO blood group. There are four principal types: A, B, AB, and O. There are two antigens and two antibodies that are mostly responsible for the ABO types. The specific combination of these four components determines an individual’s type in most cases.
Which blood group does not contain antibodies?
The ABO system blood group O – has no antigens, but both anti-A and anti-B antibodies in the plasma. blood group AB – has both A and B antigens, but no antibodies.
What are the 8 different blood types?
People are probably most familiar with these types because they include the eight common blood types: A-positive, A-negative, B-positive, B-negative, AB-positive, AB-negative, O-positive, and O-negative. If you are interested in learning more about blood types, continue reading below for more information.
What are the types of blood groups?
There are four main blood groups (types of blood) – A, B, AB and O. Your blood group is determined by the genes you inherit from your parents.
What determines person’s blood types?
A person’s blood type is determined largely by genetics, and it does not change through his or her lifetime. A simple blood typing test can be performed literally anywhere by anyone through the use of specially-treated testing cards. One of the main factors that determines blood type is family genetics.
What are rare blood antigens?
The rarest blood type in existence is Rhnull blood. This stuff is characterized by a complete lack of antigens in the Rh system , which is the largest blood group system. This includes the D antigen (Rh factor, baby), plus the other 50-something antigens in the group.