Anti Bodies
Type A blood

can be used to donate to type B individuals
can be used to donate to type AB individuals
can always be used to donate to an Rh+ individual
contains type B antigens on the surface of red blood cells

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Anti Bodies
The immunoglobulin fold is

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

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

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