Anti Bodies
Fab fragment has

two antigen binding site
two antibody binding site
one antigen binding site
one antibody binding site

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Anti Bodies
The main function of antibodies is to

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

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Anti Bodies
The immunoglobulin fold is

found only in IgG molecules
both (a) and (b)
a β-barrel composed of a three- and a four-stranded antiparallel β-sheet
found six times in the IgG molecule

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

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