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。

youdao

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。

youdao

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。

youdao

Again, the mutant mice behaved appropriately, but they were much less aggressive, spent less time fighting and they took longer breaks between attacks.

ECONOMIST: Behaviour of the sexes

AIDS. The likelihood that a mutant protein can slip through unnoticed is small: the spectrometer can tell apart proteins that differ by less than a tenth of a proton mass in weight.

ECONOMIST: Viruses: Hunt the mutant | The