Add extra copies of them to these organisms' chromosomes, or force the existing copies to produce more protein than normal, and life is prolonged.

向这些生物体染色体中加入更多这类基因拷贝，或让现有的这类基因产生比正常情况下更多的蛋白质就能将生命延长。

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Add extra copies of them to these organisms' chromosomes, or force the existing copies to produce more protein than normal, and life is prolonged.

ECONOMIST: Abolishing ageing