Which of the Following Statements Regarding NK Cells Is False

question 12

Multiple Choice

Which of the following statements regarding NK cells is false?

• A)They express either inhibitory receptors or activating receptors,but not both.
• B)Their inhibitory receptors are necessary to prevent killing of healthy cells.
• C)They all express CD56.
• D)Because NK cells express diverse combinations of receptors,no single NK cell expresses them all.
• E)Some of their activating and inhibitory receptors use MHC class I ligands.

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