Gene Transfer in Plants
Because of large size of Ti-plasmid, intermediate vectors (IV) are developed in which T DNA has been subcloned into

pBR 322 based plasmid vector
pRK 2013
all of these
pRN 3

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Gene Transfer in Plants
Opines are

amino acid derivatives found in both normal as well as tumor tissues
amino acid derivatives found in tumor tissues
amino acid derivatives found in normal tissues
None of these

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