Anti Bodies
Each IgA antibody molecule consists of

two polypeptide chain and has one antigen binding site
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

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Anti Bodies
The main function of antibodies is to

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
kill all the foreign bodies

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Anti Bodies
Monoclonal refers to

All of these
the binding with same antigenic site with identical binding affinities
a single clone of antibody-producing cells
all the antibody molecules which are identical

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Anti Bodies
The immunoglobulin fold is

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

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Anti Bodies
IgE provides

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

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