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

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Anti Bodies
The immunoglobulin fold is

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

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