Anti Bodies
Each IgA antibody molecule consists of

three 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
four polypeptide chain and has two antigen binding site

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Anti Bodies
Antibodies in the human immune system can identify approximately 108 different molecules Which one of the following is correct?

This diversity is generated from 108 different immunoglobin genes
Most of these antibodies recognize small organic molecules
Many of these molecules are self-antigens
Most of these antibodies recognize proteins

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Anti Bodies
The main function of antibodies is to

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

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Anti Bodies
Papain digest IgG into

three Fab fragments and three Fc fragments
two Fab fragments and two Fc fragments
two Fab fragments and one Fc fragment
three Fab fragments and two Fc fragments

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Anti Bodies
A polyclonal antibody response

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

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