1) ______________ functions to move the antigen into the endoplasmic reticulum, while ________________ trims the end of

[answerhappygod]

1) ______________ functions to move the antigen into theendoplasmic reticulum, while ________________ trims the end of theantigen to ensure it fits into the binding pocket. Answer choices(Calnexin, Calreticulin, ERAP, TAP, Tapasin)
2) In B cells the signal is sent to the interior of the cell viathe Iga-Igb complex. What sends the cytoplasmic signal in Tcells?
CD2
CD3
CD4
CD8
None of the above
3) Successful β chain rearrangement does not resultin:
a double thymocyte
triggering α chain rearrangement
a thymocyte that expresses both CD4 and CD8
cells being found in the inner cortex