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

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That cutting is done by special proteins called restriction enzymes.

切割是由一种特别的蛋白质完成的,称为限制性内切酶

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Now if I put them in contact with one another, the plasmid that's been opened and fragments of the DNA - special fragments that I've produced with the same restriction enzyme, they'll have the same sticky ends, they will naturally hybridize with one another.

如果我让它们互相接触,已经切开的质粒和DNA片段--,这DNA片段是我已用同种限制性内切酶,处理过的特别片段,这两者会有相同的粘性末端,它们会自然地相互杂交

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