Anti Bodies
Monoclonal refers to

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

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Anti Bodies
Each IgA antibody molecule consists of

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
three polypeptide chain and has two antigen binding site

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