Anti Bodies
The main function of antibodies is to

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

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Anti Bodies
Papain digest IgG into

three Fab fragments and three Fc fragments
three Fab fragments and two Fc fragments
two Fab fragments and two Fc fragments
two Fab fragments and one Fc fragment

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Anti Bodies
Each IgA antibody molecule consists of

three polypeptide chain and has two antigen binding site
two polypeptide chain and has one antigen binding site
two polypeptide chain and has two antigen binding site
four polypeptide chain and has two antigen binding site

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