The first to isolate plant virus was [CPMT 1979; CBSE PMT 19 – McqOptions

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1.	The first to isolate plant virus was [CPMT 1979; CBSE PMT 1993; BHU 1992]
A.	W.M. Stanley
B.	E. C. Stackmann
C.	A. K. Smith
D.	Ivanowski
Answer» B. E. C. Stackmann

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