Transgenic Plant
Resistance to glyphosphate in transgenic petunia plants has been developed by the transfer of

gene for GS (glutamine synthase)
gene for EPSPS(5-enol-pyruvyl shikimat 3 phosphate synthase)
any of the above
gene for ALS (acetolactate synthase)

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Transgenic Plant
Cross protection against viruses in transgenic plants can be obtained by

any of the above
inoculating the susceptible strain of a crop with a mild strain of a virus that helps in developing resistance against more virulent strain
inoculating the susceptible strain with the coat proteins of virulent strain
inoculating the susceptible strain with genes of nucleocapsid

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Transgenic Plant
Expression of antisense RNA in transgenic plants is a general method used to

activate the expression of all genes in a biochemical pathway
eliminate the expression of all genes in a biochemical pathway
block the expression of virus coat protein genes
reduce or eliminate the expression of individual genes

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