Anti Bodies
Antibodies of the IgG class

are glycoproteins
consist of four subunits
are secreted into the bloodstream
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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Anti Bodies
A polyclonal antibody response

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

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Anti Bodies
The immunoglobulin fold is

found six times in the IgG molecule
a β-barrel composed of a three- and a four-stranded antiparallel β-sheet
found only in IgG molecules
both (a) and (b)

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