Self vs.nonself is the concept around which the immune system function revolves.The major histocompatibility complex is a group of identifying molecules on cells that allows the immune system to determine whether a substance is self or nonself.

Question

Quizplus · Accepted Answer

The first statement is true since self vs. nonself is indeed a concept that underlies immune system function. The second statement is also true since the major histocompatibility complex (MHC) plays a key role in identifying molecules on cells and helping the immune system distinguish between self and nonself. Therefore, both statements are true.

Self VsNonself Is the Concept Around Which the Immune System Function