Certain segments of DNA are being converted into RNA, and whereas in replication, you have to copy the whole genome, the whole - all of the chromosomes, all of the DNA contained in the chromosomes of the cell in order to completely replicate it; transcription only works on particular sequences of DNA.

特定的DNA序列被转录为RNA,在复制的过程中,整条染色体都被复制,包括其中的全部DNA序列,都被分毫不差地复制下来,以保证复制的完整性,而转录过程只发生在特定的DNA序列上

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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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That DNA gets replicated to make many more copies of the viral DNA using host mechanisms, that is, often using the DNA polymerase which is naturally present in the host cell for its own replication.

病毒DNA进行复制,通常是利用在宿主细胞自身的有关物质,利用宿主细胞中天然存在的,DNA聚合酶来大量复制病毒DNA

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