Anti Bodies
Cleavage of an IgG molecule by a specific protease can produce

two Fab fragments and one Fc fragment
an antigen-binding site and two constant regions
an inactive mixture of oligopeptides
two heavy chain-light chain dimers

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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?

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

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Anti Bodies
IgE provides

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

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