Anti Bodies
Antibodies of the IgG class

are secreted into the bloodstream
All of these
are glycoproteins
consist of four subunits

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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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