Which of the Following Is TRUE of Fc Receptors for Immunoglobulins

Multiple Choice

Which of the following is TRUE of Fc receptors for immunoglobulins?

A) They are found on cells of the reticuloendothelial system and are involved in antibody-dependent, cell-mediated cytotoxicity.
B) They are associated with the T3 complex of the T-cell receptor.
C) They are not able to bind immunoglobulin.
D) They are receptors which recognize the Fab portion of the antibody.
E) They are all unique, because each has a specific antigen binding capacity.