When type B blood is given to a person with type A blood, __________. the B...

When type B blood is given to a person with type A blood, __________.

the B antigen from the donor reacts with anti-A antibody in the recipient
the B antigen from the donor reacts with anti-B antibody in the recipient
the A antigen from the donor reacts with anti-A antibody in the recipient
the B antigen from the recipient reacts with anti-B antibody in the donor

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Expert Solution

B. The B antigen from donor reacts with anti-B antibody in recipient

There are two types of major antigen on RBC they determine blood type.
Type A has Antigen A and type B blood has Antigen B. Type AB has both antigen A and B. Type O doesn't have any antigen.
Antibodies attack antigen and destroy it. They are formed in response to foregin antigen
Therefore Type A has Anti B antibody (because they lack B antigen). Similarly Type B has anti A antibody, type AB doesn't have any antibody and type O has both Anti A and Anti B antibody.
Blood transfusion is successful only if the recipient doesn't have antibodies against donor blood antigen.
Therefore when type B blood having B antigen is infused to Type A blood then Anti B antibodies in recipient react with type B blood.

Sydney Mullin answered 1 year ago

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