Anti Bodies
IgE provides

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

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Anti Bodies
A polyclonal antibody response

violates clonal selection
occurs during the lag phase of the immune response
is produced by several B cells recognizing different pitopes on the same antigen
is produced only in response to polymeric antigens

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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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