試題詳解

44. For the process of the activation of a helper T cell, pick a WRONG step below.
(A)the antigen independently binds to the binding site of the helper T cell
(B)a macrophage encounters the antigen
(C)the self protein binds to the antigen
(D)the antigen-self protein complex migrates to the surface of macrophage
(E)the antigen-self protein complex binds to the T cell receptor