It's the transcribed version of DNA, and it's the exact complement of a particular region of DNA.

它是DNA的转录版本,与特定的DNA序列严格互补

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It exists in a double stranded form where every strand is matched by its complement.

这种碱基配对存在于DNA双链中,每条单链都与其互补链,通过这个原则配对组合

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We call it the complement and each strand of DNA, each polymer of DNA that you could make or you could draw has only one complement and that complement has the following features.

我们称之为互补链,每个DNA聚合物,都只有一种互补链,互补链有以下特点

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