Many Viruses Reduce the Amount of MHC-I Complex on the Surface

question 9

Multiple Choice

Many viruses reduce the amount of MHC-I complex on the surface of the infected cell.How does the immune system recognize cells that lack MHC-I?

• A) Cytotoxic T lymphocytes will recognize the lack of MHC-I on the surface and kill the cell
• B) Macrophages will recognize an antibody bound to MHC-I and engulf the cell.
• C) Natural killer cells will kill cells that lack MHC-I on their surface.
• D) Cells that don't have enough MHC-I on their surface will enter apoptosis and die.
• E) Cytotoxic T lymphocytes will recognized the altered MHC-I on the cell surface.

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