Multiple Choice
Which is incorrect about the Fc region of an immunoglobulin?
A) It is called the crystallizable fragment.
B) It contains an effector molecule that can fix complement.
C) It forms the antigen binding sites.
D) It contains an effector molecule that can bind to cells such as macrophages and mast cells.
E) It determines the class to which the immunoglobulin belongs.
Correct Answer:

Verified
Correct Answer:
Verified
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