Which of the Following is the Result When a CTL

Question

Which of the following is the result when a CTL interacts with a virally infected cell?
A) The cell releases interferon-gamma (INF-γ).
B) The cell undergoes apoptosis.
C) The CTL produces oxidizing chemicals.
D) The CTL produces IL-12.
E) The cell produces MHC II with epitope attached.

Accepted Answer

When a CTL (Cytotoxic T Lymphocyte) interacts with a virally infected cell, it can recognize the presence of viral peptides on the surface of the infected cell through its T cell receptor (TCR). This recognition leads to the activation of the CTL, which then induces apoptosis (programmed cell death) in the infected cell. This is a mechanism to eliminate the infected cell before the virus can replicate and spread.