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

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

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Anti Bodies
The main function of antibodies is to

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

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Anti Bodies
Antibodies in the human immune system can identify approximately 108 different molecules Which one of the following is correct?

Most of these antibodies recognize small organic molecules
Many of these molecules are self-antigens
This diversity is generated from 108 different immunoglobin genes
Most of these antibodies recognize proteins

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