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Antigen Definition and Explanation PDF | Download eBooks

Learn Antigen definition in molecular biology with explanation to study “What is Antigen”. Study antigen explanation with molecular biology terms to review molecular biology course for online degree programs.

Antigen Definition:

  • A substance recognized and bound by an antibody..

    Molecular Biology by Robert F. Weaver



Antigen Explanation:

Antigen (Ag) is a structure or a substance that is recognized and specifically bound by an antibody (Ab). It is basically a foreign substance or a toxin, that induces an immune response in the body, leading to the production of antibodies. The term antigen describes a structural molecule that binds to a specific antibody, only in the form of native antigen.

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