Give one difference between the blood groups 'O' and 'AB'.

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Solution

The difference is as follows:
Blood group O Blood group AB
People with blood type AB have antigens A and B on the surface of their RBCs but no antibodies to either antigen in their plasma. A person with blood group 'O' is known as a universal donor (since it lacks antigen) and may donate blood to anybody, i.e. A, B, AB, or O
People with blood group O do not have any antigens, however, they do have antibodies to both antigens, A and B. An individual with blood group 'AB' is referred to as a universal receiver since they have both antigens but no antibodies and they only can receive blood from A, B, O

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What is the difference between O^-blood group and Bombay blood group?

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Blood group O	Blood group AB
People with blood type AB have antigens A and B on the surface of their RBCs but no antibodies to either antigen in their plasma. A person with blood group 'O' is known as a universal donor (since it lacks antigen) and may donate blood to anybody, i.e. A, B, AB, or O	People with blood group O do not have any antigens, however, they do have antibodies to both antigens, A and B. An individual with blood group 'AB' is referred to as a universal receiver since they have both antigens but no antibodies and they only can receive blood from A, B, O