The MHC class I antigen complex displays a foreign antigen on the cell surface. This prompts the immune system to destroy
A) B cell clones.
B) extracellular antigens.
C) the displaying cell.
D) mature red blood cells.
E) the virus inside the cell, but not the cell.

Question

Quizplus · Accepted Answer

The MHC class I antigen complex presents peptides from intracellular proteins, including those of intracellular pathogens like viruses, on the cell surface. This signals cytotoxic T cells to recognize and destroy the infected cell, not just the pathogen inside it.

The MHC Class I Antigen Complex Displays a Foreign Antigen