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The other chain is facing in the other direction, the 3' carbon is up, the 5' carbon is down.
对面的那条单链方向相反,3'位的碳原子向上,5'位的碳原子向下
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The other tip I'm going to give you is any time you see a chain molecule, by chain I just mean many different atoms written out in a row.
我要告诉大家的另外一个小窍门是,每当你看到一个链状分子，链状的意思是说很多,不同的原子写成一行的形式。
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Here's a way that you can do it in a test tube without using any cells by this process called Polymerase Chain Reaction.
但有一个方法可以让你在试管中完成,不用细胞,这个方法叫聚合酶链式反应
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Even if a nuclear explosion took place and everything on earth got atomized and destroyed, through some bizzare science fiction chain reaction. They always do in the movies.
即使发生核爆炸,像某些离奇科幻小说里描述的，的连锁反应那样，一切都毁灭了,电影里经常可以看到的场面。
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But if you want to reject it, you have to break in to this chain of reasoning which goes, taking my earnings is like taking my labor, but taking my labor is making me a slave.
但要想驳倒自由主义，你就得打破它的这个推理过程，强占我的收入，就是强迫劳动，强迫劳动，就是让我做奴隶。
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v We don't know what it is yet. In order to change this from a p to a V, you have to use the chain rule. So let's use the chain rule.
为了把这里的p变成,我们需要利用链式法则,好，让我们使用链式法则。
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It also turns out that they're made stable in these environments like milk and mucus secretions because of this secretory chain which is wrapped around it.
同时,连接抗体还可以,使抗体在像乳汁或是粘液分泌物,这样的体内环境中保持稳定,因为分泌循环系统可以将抗体包裹在内
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The nucleotide has a directionality, there's an up and a down to it and it's going to turn out the chain that's formed by polymerizing these has a directionality as well and that's important in defining the structure.
核苷酸有方向性,有上端和下端,核苷酸长链,是由核苷酸沿一个特定方向聚合而成的,这在定义结构时很重要
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You can just say it's RNA or DNA and you know everything about the pentose in every molecule on the chain.
你只需要说它是一个RNA或者DNA,就能知道,每个核苷酸分子的戊糖
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One, its chain is oriented in the opposite direction: where this one goes 5' to 3', this one goes 3' to 5'.
一,这些DNA单链,方向相反,一条从5'端到 3'端,另一条从3'端到5'端
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