Assertion: T-lymphocytes mediate CMI response.
Reasoning:: The above response makes it easy to transplant organs.
Reasoning:: The above response makes it easy to transplant organs.
Answer & explanation
Correct answer: option 3
Cell-mediated immunity (CMI) is an immune response that does not involve antibodies, but rather involves the activation of phagocytes, antigen-specific cytotoxic Tlymphocytes, and the release of various cytokines in response to an antigen. The immune response to a transplanted organ consists of both cellular(lymphocyte mediated) and humoral (antibody mediated) mechanisms. Although other cell types are also involved, the T cells are central in the rejection of grafts.