Assignment task: You are performing an experiment to graft islet β cells into a mouse with no pancreas. Previously, you have successfully performed a(n) - between two inbred BALB/c mice from the same litter. This time, you are trying a(n) - by transferring the islet β cells from a C57Bl/6 mouse into the pancreas-lacking BALB/c mouse. You treat the BALB/c mouse with a(n) - to dampen the immune responses before the transplant. After the transplant, you wean the mouse off this treatment. Unfortunately, the graft is - , and the graft tissue is killed. You want to try again with the same recipient mouse, but your mentor tells you not to bother because your sensitized mouse will experience - . Back to the drawing board! immunosuppressive drug syngeneic graft hyperacute rejection allograft rejected accelerated rejection tolerated