That custom guide RNA molecule is like a homing beacon.

这种自定义向导RNA分子就像一个导航信标。

The two scientists created a new molecule called guide RNA, which can be easily customized to mirror any DNA strand.

这两位科学家创造了一种名为“向导RNA”的新分子，可以很容易地复制任何DNA链。

And so Cas9 can surf along the genes, the DNA bases in the genome, until it finds the perfect match for its guide RNA.

所以 Cas9 可以沿着基因，基因组中的脱氧核糖核酸碱基，直到找到与其指导核糖核酸的完美匹配。

CRISPR complex finds a targeted part of a genome with a guide RNA. The guide tows along an enzyme from what's known as the Cas family that does the actual cutting.

CRISPR 复合体通过引导 RNA 找到基因组的目标部分。该指南沿着一种酶进行拖曳，这种酶来自所谓的 Cas 家族，该家族进行实际切割。

Yet another method, known as " bridge RNA" , details of which were published in Nature in June, uses a form of guide RNA that recognises two stretches of DNA—the target site and the new gene that is to be inserted.

还有一种方法， 称为“桥接RNA”，其细节于6月份发表在《自然》杂志上，该方法使用一种引导RNA， 可以识别两段DNA——目标位点和要插入的新基因。