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

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

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

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Anti Bodies
Papain digest IgG into

three Fab fragments and two Fc fragments
two Fab fragments and one Fc fragment
three Fab fragments and three Fc fragments
two Fab fragments and two Fc fragments

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Anti Bodies
Type A blood

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

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