Anti Bodies
The main function of antibodies is to

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

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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
Many of these molecules are self-antigens
Most of these antibodies recognize proteins
Most of these antibodies recognize small organic molecules

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Anti Bodies
IgE provides

immunity against some parasites
complement killings of the cells and phagocytosis
All of these
secretions in the body

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Anti Bodies
A polyclonal antibody response

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

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

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