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

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

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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 six times in the IgG molecule
found only in IgG molecules

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Anti Bodies
Monoclonal refers to

the binding with same antigenic site with identical binding affinities
All of these
a single clone of antibody-producing cells
all the antibody molecules which are identical

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Anti Bodies
Each IgA antibody molecule consists of

four polypeptide chain and has two antigen binding site
three polypeptide chain and has two antigen binding site
two polypeptide chain and has one antigen binding site
two polypeptide chain and has two antigen binding site

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