Anti Bodies
Antigenic determinants bind to which portions of an antibody?

Variable regions
Constant regions
Only heavy chains
Only light chains

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Anti Bodies
The main function of antibodies is to

protect the circulatory system
chemically combine with the antigen which induces it, inactivate the antigen and protect the body from disease
generate antigens, thus conferring immunization
kill all the foreign bodies

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Anti Bodies
The immunoglobulin fold is

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

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