A transplant recipient rejects a transplanted organ because her ________ does not match that of the donor closely enough.
A)major histocompatibility complex
B)mononuclear phagocytic system
C)cytokine profile
D)antibody response

Question

Quizplus · Accepted Answer

The major histocompatibility complex (MHC) is a set of genes that encode for cell surface molecules that are involved in the recognition and presentation of antigens to the immune system. MHC mismatch between donor and recipient increases the risk of rejection, as the recipient's immune system views the transplanted organ as foreign and mounts an immune response against it. This is a major barrier to successful organ transplantation and requires careful matching between donor and recipient to minimize the risk of rejection.

A Transplant Recipient Rejects a Transplanted Organ Because Her ________