Active only in effector phase of cellular response, they release perforin p
Active only in effector phase of cellular response, they release perforin proteins. Natural killer cells can compensate for these lymphocytes against viruses like Epstein-Barr that actively diminish the amount of (*) class I major histocompatibility complex molecules on antigen presenting cell surfaces.  Activated by interleukin-2 released from helper T cells, for 10 points— name these cell-mediated "killer" T  cells.
Active only in effector phase of cellular response, they release perforin proteins.
cytotoxic T cells (accept killer T cells before they are mentioned)