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

Question

Quizplus · Accepted Answer

CD4 and CD8 are molecules present on the surface of T cells where they interact with major histocompatibility (MHC) molecules. CD4 is found on helper T cells and CD8 is found on cytotoxic T cells.

CD4 and CD8 Are ________