Virusus usually infect the whole plant except the [CBSE PMT 1993; MH C – McqOptions

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1.	Virusus usually infect the whole plant except the [CBSE PMT 1993; MH CET 2000]
A.	Stem apex
B.	Cortex
C.	Pith
D.	Phloem
Answer» B. Cortex

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