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What are the five blood types? A, B, AB, O, ?
What are the genotypes for the four A: AA, AO
major ABO blood groups? B: BB, AO
AB: AB
O: OO
Describe forward typing. Patient blood of an unknown type is mixed with
known sera. A positive result is agglutination. An
example: If anti-A serum causes a positive reaction,
and the anti-B serum has a negative reaction, then
the cells only have the A antigen and the blood type
is type A.
Describe reverse typing. Patient serum of unknown type is mixed with known
cells. Example: if A cells do not cause a reaction, and
B cells do cause a reaction, then the patient serum
contains anti-B, which means they do not have the B
antigen and (going off of the forward being A type),
are confirmed to be type A.
What antibodies and antigens do type Anti-B
A people have? A antigen
What antibodies and antigens do type Anti-A
B people have? B antigen
What antibodies and antigens do type A and B antigen
AB people have? No anti-A or anti-B