Anti Bodies
Structures of anti-PCP antibody shows that the tight binding of PCP to the antibody is primarily due to

hydrophobic forces
electrostatic forces.
none of these
Van der Waals forces.

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Anti Bodies
The main function of antibodies is to

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

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Anti Bodies
The immunoglobulin fold is

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

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