Transgenic Plant
ACC demainase gene is responsible for

synthesis of polygalactouranase
degradation of ACC an immediate precursor to ethylene
both (a) and (b)
synthesis for ethylene

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Transgenic Plant
Low temperatures induce the expression of many cold-induced genes. Transgenic plants with improved cold tolerance have been produced by

expressing a gene for production of antifreeze (ethylene glycol) in plants
increasing evaporative cooling from leaf surfaces
expressing the protein that activates expression of these genes all the time in plants
cooling plants using the Peltier effect

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