生物钟基因普遍存在于生物界，其作用在于产生和控制昼夜节律的运转。
The circadian clock genes, which generate circadian rhythms and maintain its the running, exist in organisms ranging from prokaryotes to mammals.
生物钟基因普遍存在于生物界，其作用在于产生和控制昼夜生物节律的运转。
Clock genes is prevalent in biological world, and they can bring and control biological circadian rhythm.
有些妇女的生物钟比别人的走得快，而现在，研究人员们已经发现可以解释妇女们生育生活长短差异的首要基因依据。
Some women's biological clocks tick faster than others, and now, researchers have uncovered the first genetic evidence to explain differences in the length of women's fertile lives.
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