Which is incorrect about the Fc region of an immunoglobulin?

Question

Quizplus · Accepted Answer

The Fc region of an immunoglobulin is not responsible for forming the antigen-binding sites. The antigen-binding sites are formed by the variable regions of the immunoglobulin. The Fc region is located at the bottom of the Y-shaped structure of the immunoglobulin and is responsible for binding to cellular receptors and components of the immune system, such as macrophages, mast cells, and complement molecules. It is also important for determining the class or isotype of the immunoglobulin.

Which Is Incorrect About the Fc Region of an Immunoglobulin