题目内容

核糖体上存在三个与先安tRNA结合位点及( )位点、()位点和( )位点

查看答案

搜索结果不匹配？点我反馈

更多问题

许多氨基酸都有多个密码子，除了( )只有一个密码子之外，其余都有一个密码只以上。

翻译过程中需要哪四种组分？他们的功能是什么？

listen and fill in the missing blanks.[音频]I (1)______ to come here on my first visit to your beautiful city. (2) all the members of my (3)_, I would like to take this opportunity to express our (4)_ thanks to our host for their earnest invitation and (5)____________ we have received since we set foot on this (6)_ land. I am also very happy that this visit has given me an excellent opportunity to (7)____ to you and to the people of Shanghai warm (8)_ and sincere good wishes of the government and people of my country. Although we live with a (9)_ of thousands of miles between us, "Long distance separates no (11)_____ friends,"as one of your Tang poets said.

生命体的遗传物质主要由DNA和RNA组成，遗传物质的生物合成可由复制和转录完成，试以大肠杆菌为例，论述转录与复制的区别。