※ 引述《[email protected] (michiyo)》之铭言： > 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！ 我猜你们应该是上到了RNA的部分, 我建议你们先去翻有关gruop II intron, retro-homing/retro-transposition的文章 再与transposon insert的机制比较 然後用自己的话说明白比较好 因为这一段话包含很多不同的东西; 要看懂这简化说明的话得要先有背景知识. -- 夫兵者不祥之器物或恶之故有道者不处君子居则贵左用兵则贵右兵者不祥之器非君子 之器不得已而用之恬淡为上胜而不美而美之者是乐杀人夫乐杀人者则不可得志於天下 矣吉事尚左凶事尚右偏将军居左上将军居右言以丧礼处之杀人之众以哀悲泣之战胜以 丧礼处之道常无名朴虽小天下莫能臣侯王若能守之万物将自宾天地相合以降甘露民莫 之令而自均始制有名名亦既有夫亦将知止知止可以不殆譬道之在天 140.109.40.39海