遗传就像一位“裁缝”，用像“手指”一样的分子先抓住DNA，把它剪开后再缝合成一个新DNA链。这有可能是较为安全的基因疗法。
The genetic equivalent of a tailor who USES molecular "fingers" to grab onto DNA, before snipping it apart and stitching in a new sequence could lead to safer gene therapies.
失去特定的碱基互补配对，复制酶系就不能合成模板链的互补链，而是在经过复制叉后留下一个裂口。
Without specific base pairing, the replication enzymes cannot specify a complementary strand, and gaps are left after the passing of a replication fork.
这种甲基化有助于区分新合成的DNA链从母链，协助在最后阶段的DNA复制后校对。
This methylation helps distinguish the newly synthesized DNA strand from the parent strand, which AIDS in the final stages of DNA proofreading after duplication.
这种甲基化有助于区分新合成的DNA链从母链，协助在最后阶段的DNA复制后校对。
This methylation helps distinguish the newly synthesized DNA strand from the parent strand, which AIDS in the final stages of DNA proofreading after duplication.
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