define antigen and antibody with suitable example from plants.

Dear student,

​​​​ANTIGEN is foreign molecule which produces an immune response in host's immune system.

ANTIBODY is a protein which is produced by immune system of the host in the presence of an antigen.

These antibodies which are produced acts against the antigens present in the host and remove from the body.

eg:Plants produce antibodies which acts against the organisms which enter the plants like bacteria,virus,fungi etc... and protect the plant.

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please give me answer

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Antigen, a toxin or other foreign substance which induces an immune response in the body, especially the production of antibodies.
Antibody, also called immunoglobulin, a protective protein produced by the immune system in response to the presence of a foreign substance, called an antigen. Antibodies recognize and latch onto antigens in order to remove them from the body.
Examples- Plants produce antibodies which fight off their own plant diseases and pests, for example, nematodes, and eliminate the need for toxic pesticides.
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