Which Is Incorrect About the Fc Region of an Immunoglobulin

question 62

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.

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