T-Cells Questions and Answers Discussion Page.

5.	Cytokinin which acts as a growth factor of B-cell is________
	A.	IFNγ
	B.	IL-10
	C.	IL-13
	D.	TNFβ

	Answer: Option C


	Explanation:
	IL-13 is secreted by TH2 and act as B-cell growth factor while IL-10 inhibits macrophages, while IFNγ and TNFβ secreted by TH1 and used to activate macrophages and inflammatory responses.



	Tutorial Link:

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