耶拿的科学家又在一次实验中准确检查了模式生物秀丽隐杆线虫中的浓缩范围。
In a second experiment, the Jena scientists examined exactly this range of concentration in the model organism C. elegans.
自从人类基因组计划完成后，令生物学家迷惑不解的是：动物(线虫、苍蝇和人类)好像都有相同数目的组成蛋白质的基因——大概20,000个。
Ever since the human-genome project was completed, it has puzzled biologists that animals, be they worms, flies or people, all seem to have about the same number of genes for proteins-around 20, 000.
这些研究始于90年代末，那时从事植物研究的研究人员和线虫生物学家学会了使用小RNA分子关闭基因。
The story started to unfold in the late 1990s, when plant researchers and nematode biologists learned to use small RNA molecules to shut down genes.
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