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This is denuded of an electron, it is Na plus.
这边是裸电子的，是钠正离子。
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DNA goes to RNA, goes to protein, that's it, and that is the way it happens in simple organisms like bacteria.
NA转录成RNA接着翻译成蛋白质,仅此而已,而这仅是细菌那样的简单有机体中的机制
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DNA is a double helix, you know this, the double helix was--the structure of DNA was discovered about the time that I was born you've always lived with it.
NA是双螺旋结构,众所周知,DNA的这种双螺旋结构,是在我出生的那个年代才被发现的,它就是你生命的一部分
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The whole structure of a DNA molecule looks like this, going back to a more cartoon version like I showed you before but adding some detail onto it now.
NA分子的全部结构都和,刚才的卡通模型上差不多,但细节更为丰富
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A newer version of this that works in a similar way but a different way is called RNA interference, and it turns out that this is a natural mechanism that cells have.
NA干扰是这类方法的新秀,它的原理与其大同小异,已经证实 这是细胞的自然机制
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It's loaded with phosphates which are negatively charged.
NA分子上有很多带负电荷的磷酸根
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