Transgenic Plant
Resistance to L-phosphinothrium in tobacco plants is developed by the transfer of

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

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Transgenic Plant
Transplastomics

offers little opportunity for practical use
targets genes in the chloroplast
produces genes that are released in pollen
provides exceptionally low yields of protein products

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Transgenic Plant
Which of the following has been widely used to provide resistance against plant viruses?

Expression of ribonuclease (RNase) genes in host plants
Expression of anti-virus genes in vectors that transmit viruses
Expression of virus coat protein genes in transgenic plants
Virus resistance genes from bacteria

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