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
kill all the foreign bodies
generate antigens, thus conferring immunization
protect the circulatory system

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Anti Bodies
IgE provides

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

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Anti Bodies
The immunoglobulin fold is

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

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