(OMITTED) It's still low prevalence, but you know we've just put out the synthesis report, which was an epidemiological study of HIV and its evolution in the region, and the report says that probably, at least for the near future, we'll never have an epidemic of HIV in the region.

VOA: standard.2010.07.07

That's one of the properties of mitosis, that the DNA gets completely duplicated during the S phase, during DNA synthesis phase.

有丝分裂的一个特征,就是DNA在S期内完全复制,S期就是DNA合成期

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try and come to some middle ground synthesis based on everyone's ideas.

最后，折衷考虑所有人的观点，形成一个综合的论点。

要做好角色分担 - SpeakingMax英语口语达人

That's synthesis and that has to happen in order for cells to replicate and cell replication is happening in your body all the time.

这个DNA合成过程是,细胞复制中不可或缺的部分,细胞复制时刻不停的在你身体里进行着

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What's shown here is what's called a replication fork in DNA that's undergoing synthesis.

这里展示的是在DNA合成过程中,形成的DNA复制叉

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Let's talk about DNA synthesis for a minute.

下面简要介绍一下DNA的合成

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Synthesis always occurs in one direction and that makes sense to you now because you know there's a directionality and the chemistry is different going one way than the other and this DNA polymerase only works on the chemistry going in one direction.

NA复制过程是单向的,现在你们该明白原因了,因为DNA单链有方向性,DNA在两个方向上化学性质不同,DNA聚合酶,只在一个方向上起作用

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