Multiple Choice
Which of the following is NOT true of natural killer cells?
A) They require prior exposure to pathogens to be able to inactivate them.
B) They are involved in the innate immune response.
C) They recognize cell surface proteins on a number of cancer cells.
D) They are able to recruit additional cells to attack the target cell.
E) They release IFN-γ.
Correct Answer:

Verified
Correct Answer:
Verified
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