In addition to IgG, the antibodies that can fix complement are
A) IgD.
B) IgE.
C) IgA.
D) IgM.
E) None of the answers is correct.

Name: In addition to IgG, the antibodies that can fix complement are A) IgD. B) IgE. C) IgA. D) IgM. E) None of the answers is correct.
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Question

Quizplus · Accepted Answer

Only IgM can fix complement, as it is a pentameric antibody with multiple binding sites for complement proteins. IgG can also fix complement, but it is not exclusive to IgG. IgD, IgE, and IgA cannot fix complement.

In Addition to IgG, the Antibodies That Can Fix Complement