Transgenic Plant
Resistance to sulphonyl urea compounds in transgenic tobacco plant has been developed by the transfer of

gene for EPSPS (5-enol-pyruvyl shikimat 3 phosphate synthase)
gene for GS (glutamine 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

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

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Transgenic Plant
Transgenic plants

contain foreign genes in their cells
both (a) and (b)
are used to produce human antibodies
are plants that differ in geographical locations

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