Anti Bodies
The human IgG class of antibodies is divided into

three IgG classes
five IgG classes
two IgG classes
four IgG classes

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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
Type A blood

contains type B antigens on the surface of red blood cells
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

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