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1. |
The antibiotic penicillin is a small molecule that does not induce antibody formation. However, penicillin binds to serum proteins and forms a complex that in some people induces antibody formation resulting in an allergic reaction. Penicillin is therefore |
A. | an antigen |
B. | a hapten |
C. | an immunogen |
D. | both an antigen and a hapten |
Answer» E. | |