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

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

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Anti Bodies
IgE provides

All of these
immunity against some parasites
complement killings of the cells and phagocytosis
secretions in the body

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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
protect the circulatory system
generate antigens, thus conferring immunization

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