The retroviral transfected DNA is infected into mammalian cells by hel – McqOptions

MCQOPTIONS

1.	The retroviral transfected DNA is infected into mammalian cells by helper retrovirus. Helper retrovirus should not be packaged and the method adopted for this is?
A.	Deletion of the packaging signal in the helper genome
B.	Deletion of multiple parts of the helper genome
C.	Division of the helper genome into several pieces
D.	All of the mentioned
Answer» E.

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