The virus is a single-stranded RNA virus belonging to the virus family Arenaviridae.

该病毒是一种单链核糖核酸（RNA）病毒，属于沙粒病毒科。

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Mammalian cells make only the single-stranded variety. If a cell’s defence mechanisms detect double-stranded RNA they destroy it, to protect against infection.

哺乳动物细胞只能识别单链RNA,如果细胞的防御机制发现了双链RNA就会破坏它以保护机体不受病毒的感染。

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Structurally, RNA is a single-stranded structure.

从结构来看，RNA是单链结构。

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Transcription just means making a single stranded RNA copy of a sequence of base pairs in a DNA.

转录的过程就是从一段DNA碱基序列中,复制出一段单链RNA

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The end result of transcription is not double stranded DNA, it's single stranded RNA where the RNA that's produced is called messenger RNA.

最终的转录产物并非双链的DNA,而是单链的RNA,称为信使RNA

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It's very important in the biological operation of human cells and that step is RNA splicing, or processing of this RNA, single stranded RNA that's produced by transcription.

而这对人类细胞生物运作至关重要,这个步骤就是RNA剪接,或者说是对RNA的加工,对转录出的单链RNA进行加工的步骤

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The HIV retrovirus, in particular, is a single-stranded RNA virus that duplicates itself in a host cell by converting its genetic code into double-stranded DNA that is then inserted into the host cell.

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