Anti Bodies
The human IgG class of antibodies is divided into

three IgG classes
four IgG classes
two IgG classes
five IgG classes

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Anti Bodies
Each IgA antibody molecule consists of

four polypeptide chain and has two antigen binding site
two 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

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Anti Bodies
IgE provides

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

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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?

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

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