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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Anti Bodies
The immunoglobulin fold is

a β-barrel composed of a three- and a four-stranded antiparallel β-sheet
both (a) and (b)
found only in IgG molecules
found six times in the IgG molecule

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Anti Bodies
IgE provides

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

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Anti Bodies
A polyclonal antibody response

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
is produced only in response to polymeric antigens

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