Multiple Choice
Class II MHC proteins are present in the plasma membrane only when
A) a helper T cell has engulfed an antigen.
B) an antigen-presenting cell has engulfed and is processing an antigen.
C) a virus-infected cell secretes interferons.
D) a cancerous cell gets attacked by NK cells.
E) the body cells are healthy.
Correct Answer:
Verified
Correct Answer:
Verified
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