Antibody
Simulation of which of the following will lead to appearance of first antibody to appear following stimulation by an antigen?

IgG
IgA
IgE
IgM

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Antibody
Which is not a function of IgG?

Activates or fixes complement
Involved in opsonization
First antibody type produced against an antigen during the primary antibody response
Major antibody in serum

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