Question

write a short note of antigen

Answer 1

An antigen is a protein expressed by a bacteria or virus that is recognized by the adaptive immune system as foreign which can stimulate the production of antibodies and combine ...


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Answer 2

In immunology, an antigen is a molecule capable of inducing an immune response in the host organism. Sometimes antigens are part of the host itself in an autoimmune disease. Antigens are "targeted" by antibodies.