Transgenic Plant
Insect resistance in the transgenic plant has been achieved by

transferring genes for protease inhibitors
transferring genes for other insecticidal secondary metabolities
transferring genes for Bt toxins
All of these

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

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
any of the above
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

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

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