Multiple Choice
CD4 and CD8 are ________.
A) proteins secreted by antigen-presenting cells
B) receptors present on the surface of natural killer cells
C) molecules present on the surface of T cells where they interact with major histocompatibility (MHC) molecules
D) molecules on the surface of antigen-presenting cells where they enhance B cell activity
Correct Answer:
Verified
Correct Answer:
Verified
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