They're also single-stranded, positive-sense ribonucleic acid, or RNA, viruses.

它们也是单链、正义核糖核酸（RNA）病毒。

The answer, we now know, was RNA, or ribonucleic acid, which acts as an interpreter between the two.

我们现在知道，是RNA，也就是核糖核酸在这两者中间起到了一种翻译作用。

DNA synthesizes RNA or ribonucleic acid by a process called transcription that is further translated into proteins by a process termed as translation.

DNA 通过转录合成 RNA 或核糖核酸，然后通过翻译进一步变成蛋白质。

In a process called transcription, a segment of DNA is copied into RNA (ribonucleic acid).

在转录过程中，DNA 片段被复制成 RNA（核糖核酸）。

Plants have short strips of RNA, or ribonucleic acid, called microRNAs, which can help regulate which genes get expressed inside them.

植物有短的 RNA 或核糖核酸，称为 microRNA，它可以帮助调节哪些基因在它们内部表达。

When a gene is turned on, it manufactures another complex molecule called ribonucleic acid (RNA), which contains all the information the cell needs to make new proteins.

当一个基因被打开时，它会生产另一种称为核糖核酸（RNA）的复杂分子，其中包含细胞制造新蛋白所需的所有信息。