Transgenic Plant
Transgenic plants

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

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

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