So,Once they are lost in response to a toxic sound or to an antibiotic it cannot be regenerated by natural means.

一旦因噪音或抗生素遭受损失,就难以再生。

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If your gene goes in, you've interrupted the gene for antibiotic resistance and those new organisms aren't going to be resistant to antibiotic anymore.

如果基因进入了质粒,原本对抗生素有抗性的基因就被打断了,那些新细菌就不再对抗生素有抗性

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One way that you can look for that gene that you want is by making the cut in your plasmid inside of a gene that encodes for some property like resistance to an antibiotic.

一种找到成功重组质粒的方式,是在质粒控制某种特性的编码区域切割,例如,对抗生素的抗性

耶鲁公开课 - 生物医学工程探索课程节选

Ampicillin is an antibiotic.

氨苄青霉素是一种抗生素

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So being a micro-organism that got a plasmid that give you resistance to an antibiotic would be a good thing - that gave you resistance to something that naturally killed cells like you in your environment would be a good thing.

假如一个微生物,因含有质粒而具有抗生素抗性,这实在是一桩美事--,在同样的环境下,普通细胞会被杀死,而你们这些具有抗性的细胞却安然无恙,这实在太棒了

耶鲁公开课 - 生物医学工程探索课程节选