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表示“不”突变体 以上为机器翻译结果，快速获取精准的人工翻译结果，建议选择有道人工翻译 - 1
Compared with the normal mice, those with one mutant gene slept about 1.2 hours less, and mice with two mutant genes slept 2.5 hours less. 与正常的老鼠相比，携带一个变异基因的老鼠睡眠时间少1.2小时，而携带有2个变异基因的老鼠睡眠时间少2.5小时。 - 2
Again, the mutant mice behaved appropriately, but they were much less aggressive, spent less time fighting and they took longer breaks between attacks. 这个基因改变的老鼠表现是适当地，可是它们的攻击性减小、打斗的时间也减少而且在打斗之间的休息时间更长。 - 3
And Susheng Gan, a molecular biologist at Cornell University, says the mutant type used by the group shows only slightly delayed leaf senescence, making it a less-than-ideal model to work with. 甘肃升susheng Gan是卡奈尔大学的分子生物学家，说改组使用的变异物种只稍微推迟了树叶的衰老表象，这不是很理想的模型。
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