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
The immunoglobulin fold is

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

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Anti Bodies
Papain digest IgG into

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

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Anti Bodies
The main function of antibodies is to

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
kill all the foreign bodies

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