Anti Bodies
Each IgA antibody molecule consists of

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

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Anti Bodies
Papain digest IgG into

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

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Anti Bodies
Monoclonal refers to

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

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