For human blood transfusion, which blood group is known as universal donor?

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Accepted Answer

O Group. For human blood transfusion, ‘O’ blood group is known as universal donor and blood group ‘AB’ is universal recipient blood group. O blood types are unique in that they have no antigens. O negative blood is considered the universal blood donor type because it is compatible with all A, AB, B, and O positive blood types.

For human blood transfusion, which blood group is known as universal donor?

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