Each of these fragments of DNA was inserted inside a bacterial artificial chromosome where they were cloned and fingerprinted.

每个DNA片段都被注入到人工培育的细菌染色体中，并被复制，从而获得指纹谱图。

The bacterial chromosomes are very highly evolved if you think of organisms that replicate every minutes to an hour.

如果你想想那些在一分钟到一小时内进行复制的有机体，细菌染色体的进化程度是非常高的。