The function of IgD is______________?
Correct answer: A. Antigen recognition by B cells
- A. Antigen recognition by B cells
- B. Localization protection in external secretion
- C. Compliment activation
- D. Reagin activity
Explanation
IgD is present mainly on the surface of naïve B cells, where it acts with IgM as a B-cell antigen receptor. Secretory protection is chiefly provided by IgA, complement activation is mainly associated with IgM and IgG, and reaginic activity refers to IgE.
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