What Happens When the T Cell Receptor on a CD8

question 20

Multiple Choice

What happens when the T cell receptor on a CD8 positive T cell recognizes the peptide displayed in the MHC-I complex on an infected cell?

• A) It attracts natural killer cells, which kill the infected cell.
• B) It releases interferon g which stimulates macrophages to engulf the cell.
• C) It releases IL-4 to stimulate the B cells to release antibodies.
• D) It releases proteins that kill the infected cell.
• E) It releases IL-12 which stimulates the production of Th1 cells.

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