Anti Bodies
The humoral immune response relies on the production of soluble proteins called

macromolecules
none of these
lymphocytes
antibodies

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Anti Bodies
Each IgA antibody molecule consists of

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
two polypeptide chain and has one antigen binding site

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