What is an Fc receptor?

Options :
  1. A receptor on the surface of B cells for antigens
  2. A receptor for the crystalizable fragment of the antibodies on immune cells
  3. A high affinity receptor present on the surface of CD4+-Th cells
  4. None of the above
Answer and Explanation :-

Answer: Option 2


An Fc receptor is a protein found on the surface of certain immune cells that contribute to the protective functions of the immune system. Its name is derived from its binding specificity for a part of an antibody known as the Fc (Fragment, crystallizable) region.

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