【英语时差8,16】基因的组织方式
时间：2018-12-27 作者：英语课 分类：英语时差8，16
I know that every cell in my body has a copy of my DNA 1 packed into its nucleus 2. And I also know that if I could somehow unravel 3 the DNA from a single cell, it would be about six feet long. So my question is, is DNA jammed into the nucleus in a sort of random 4 knot? D:Great question! Scientists know that DNA is able to fit into such a small space because it’s wound tightly around proteins. But scientists also thought that DNA was randomly 5 packed in. Researchers at MIT have figured out that that’s not true.The way that DNA is packed in a cell nucleus is more organized. Y:How so? D:Well, the researches aren’t certain–they’ve only discovered clues. But based on what they’ve found, it seems that parts of DNA that are being transcribed 6 or copied are located together. Y:Cool.But so what?I don't mean to seem on curious,but what is it matter whether we know how DNA is organized？ D:It matters because the way that DNA is organized affects how it works. In fact, other studies have shown that genes 7 that are near each other may affect one another. They can even switch each other on and off. Y:I see. Like most physical objects,I guess that what DNA does depends at least a part on how its part fit together. D:Right.And the more scientist know about those parts,the better they understand how thw whole thing actually works.
- DNA is stored in the nucleus of a cell.脱氧核糖核酸储存于细胞的细胞核里。
- Gene mutations are alterations in the DNA code.基因突变是指DNA密码的改变。
- These young people formed the nucleus of the club.这些年轻人成了俱乐部的核心。
- These councils would form the nucleus of a future regime.这些委员会将成为一个未来政权的核心。
- He was good with his hands and could unravel a knot or untangle yarn that others wouldn't even attempt.他的手很灵巧，其他人甚至都不敢尝试的一些难解的绳结或缠在一起的纱线，他都能解开。
- This is the attitude that led him to unravel a mystery that long puzzled Chinese historians.正是这种态度使他解决了长期以来使中国历史学家们大惑不解的谜。
- The list is arranged in a random order.名单排列不分先后。
- On random inspection the meat was found to be bad.经抽查，发现肉变质了。
- Within the hot gas chamber, molecules are moving randomly in all directions. 在灼热的气体燃烧室内，分子在各个方向上作无规运动。 来自辞典例句
- Transformed cells are loosely attached, rounded and randomly oriented. 转化细胞则不大贴壁、圆缩并呈杂乱分布。 来自辞典例句
- He transcribed two paragraphs from the book into his notebook. 他把书中的两段抄在笔记本上。
- Every telephone conversation will be recorded and transcribed. 所有电话交谈都将被录音并作全文转写。