Immunity: Chapter 08, Specialized Lymphocytes in Early Responses and Homeostasis

NK cells are activated by viral infection. Which of the following are effects of viral infection that activate NK cells?

	a)	Induction of IFN-γ.
	b)	Induction of IFN- α/β.
	c)	Suppression of MHC class I molecule expression.
	d)	Induction of TGF-β.
CorrectWrong: b and c are correct.Your answer has been saved.

Which of the following statements are true?

	a)	IL-15 is important in the recruitment and survival of NK cells.
	b)	NK cell cytotoxicity can be directed by antibody.
	c)	NK cells normally recirculate through the lymph nodes.
	d)	TH1 cell polarization is promoted by NK cells.
	e)	The immunoglobulin- and C-type lectin-family receptors of NK cells contain both activating and inhibitory members.
	f)	Different polymorphic variants of MHC class I molecules are recognized by distinct inhibitory receptors of NK cells.
	g)	Molecules induced by cell damage are recognized by inhibitory receptors of NK cells.
CorrectWrong: a b d e and f are true.Your answer has been saved.

Which of the following belong(s) to the C-type lectin family of NK cell receptors?

	a)	Ly49
	b)	KIR
	c)	NK1.1
CorrectWrong: a and c are correct.Your answer has been saved.