A gene linked to increased life span through calorie restriction also appears to play a critical role in boosting memory and brain power, according to a study published Sunday.

周日发布的一项研究表明：一个通过热量限制来增长寿命的基因似乎还对促进记忆和智力有关键作用。

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The gene therapy for bone defect, which overcomes the restriction of traditional therapies, has fatal research significance.

骨缺损的基因治疗克服了传统治疗方法的局限，具有重要研究意义。

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In addition, gene expression patterns across brain regions show variable degrees of restriction to single brain structures.

另外，整个脑区域的基因表现型显示了单一脑结构的区域可变性。

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They do that in a very special way in that they - restriction enzymes are able to identify a particular sequence of bases in a gene.

限制性内切酶的工作机制很特别,它能识别基因中的一段特定的碱基序列

耶鲁公开课 - 生物医学工程探索课程节选

It takes advantage of the specificity of the restriction enzymes, the fact that we know what the gene sequence that we're looking for, and using this technological process of electrophoresis to identify changes that we predict.

这个方法利用了限制酶特有的性质,我们知道我们在找什么样的基因序列,从而才能利用电泳这个技术流程,来识别出我们预计的情况

耶鲁公开课 - 生物医学工程探索课程节选

In a normal cell DNA that DNA in the normal cell - this DNA gets cut by the restriction enzyme, so the sickle gene ends up - so that hemoglobin gene ends up in two pieces.

一个正常细胞的DNA,正常细胞里的DNA,会被限制酶所剪切,因此镰状血红蛋白基因--,不对,是正常血红蛋白基因被切成两段

耶鲁公开课 - 生物医学工程探索课程节选

The antiviral gene comes from a rhesus macaque, and produces a protein called a restriction factor that can resist Aids-causing viruses affecting other animals.

BBC: Glowing cats shed light on Aids