Blood type O will not clump with anti-Rh antibodies because the Rh factor is a separate antigen from the A and B antigens that determine blood type. Type O blood is characterized by the absence of A and B antigens, and the presence or absence of the Rh factor (positive or negative) is independent of the A and B antigens. Therefore, if the blood type is O and Rh-negative, it will not react with anti-Rh antibodies.
Blood types A and AB will clump with the addition of anti-A serum. The serum reacts with the A antigen present in these blood types to produced clumping.
blood type A
Blood Type 'O': Red Blood cells have neither A-antigen, nor B-antigen but generates both Anti-A and Anti-B antibodies - Blood Type 'A': Red blood cells have the A-antigen which generates the Anti-B antibodies Blood Type 'B': Red blood cells have the B-antigen and generate Anti-A antibodies The lack of antigen explains why Type "O" can safely donate to Type "A" and Type "B". The Anti-A and Anti-B antibodies generated by Type "O" is the reason "O" cannot receive donations from Type "A" or Type "B".
Type B antibodies react to type B antigens by begining to clump together, and the clumps may block blood vessels.
Blood group AB
The anti-clumping protein in blood type A is anti-B antibodies. These antibodies are produced by individuals with blood type A to protect against foreign blood cells that have B antigens. They help prevent clumping or agglutination when incompatible blood types are mixed.
A - blood type
true
anti-B
Since that person has anti-B antibodies, then A antigens are present in her red blood cells. Since that person doesnt have anti-A antibodies, then there are no B antigens present, which means the person has A type blood.
both anti a and anti b antibodies, that's why they are the universal donar Group O type there is a presence of antibody A and antibody B and the red cells has no antigen A and antigen B and in terms of blood component (Packed red cells) it can be considered as safe "O"(universal ) because of the absence of ag. A and ag B.
Individuals with type A blood produce anti-B antibodies and individuals with type B produce anti A. There are many sub groups of blood antibodies such as D (Rh) but we usually only refer to the ABO systems.