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.
electrostatic forces.
hydrophobic forces
none of these

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Anti Bodies
Monoclonal refers to

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

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Anti Bodies
The main function of antibodies is to

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

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Anti Bodies
Each IgA antibody molecule consists of

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
four polypeptide chain and has two antigen binding site

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