因为老师要我们做这段文字的报告 我用翻译软体翻的乱七八糟 想请大家帮帮忙>< Orz Insertion sequences(IS) are defined as mobile genetic elements that are known to encode only functions involved in insertion events. This is to be contrasted with transposons (Tn) ,that are mobile genetic elements containing additional detectable genes in addition and unrelated to insertion functions (for example , Adrug resistance) .Since is elements, by definitions, do not carry other genes, they tend not to be used as generic tools. On the other hand, mutations caused by it's tend to be fairly common among spontaneously derived mutants, so that knowledge of their properties is relevant. Finally, recognize how very arbitrary the above definition of an it is: it is potentially our ignorance of other enconded products that so identifies it as an IS instead of a Tn. 谢谢！ 修正後（自己再翻了一次）好像还是不太懂他在说啥 插入序列(是) 被定义作为知道输入唯一作用被介入在插入事件的流动基因元素。这将是 流动基因元素与包含另外的可发现的基因，另外和无关对插入作用的转位子被对比(例如, 药物抵抗) 。因为是元素, 所以由定义说, 不要运载其它基因, 他们倾向於不被使用作 为基因工具。另一方面, 变化导致是倾向於是相当共同在自发地被获得的突变体之中, 以便他们的物产知识是相关的。 最後那句我看不懂～～= = --

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