Anti Bodies
Cleavage of an IgG molecule by a specific protease can produce

an inactive mixture of oligopeptides
an antigen-binding site and two constant regions
two Fab fragments and one Fc fragment
two heavy chain-light chain dimers

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Anti Bodies
The main function of antibodies is to

kill all the foreign bodies
chemically combine with the antigen which induces it, inactivate the antigen and protect the body from disease
generate antigens, thus conferring immunization
protect the circulatory system

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