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A person with blood group A produces antibodies against

BA person with blood group B produces antibodies against
AA person with blood group AB produces no antibodies. How can you explain this?

Verified Answer :

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This is simply a protective mechanism of the body. A person with blood group A will produced antibodies against  blood group B because  group B cells are considered foreign bodies to the person and will not be tolerated and vice versa. Group B people have antibodies against group A and will not tolerate group A cells. This is why group A person can only be transfused with group A blood or group O blood. Both A and B   have no antibodies against blood group O. Indeed no blood group has antibodies against Blood group and this  is why people with blood group O are called universal donors.

Group AB people do not have antibodies against any blood group because both these groups are part and parcel of their body and production of antibodies against either A or B would end up in self destruction of the body. Group AB  people are known as universal recipients because they can receive blood from any of the other groups.


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