Ribonucleic acid (RNA) is a polymeric molecule that is essential for most biological functions, either by performing the function itself (non-coding RNA) or by forming a template for the production of proteins (messenger RNA). RNA and deoxyribonucleic acid (DNA) are nucleic acids.

雙鏈RNA (dsRNA)是指具有兩個互補鏈的RNA，與細胞中的DNA結構相似，它也是某些 病毒 (雙鏈RNA病毒)的遺傳物質。 雙鏈RNA如病毒RNA或小干擾RNA (siRNA)，可以觸發 真核生物 的RNA干擾，以及 脊椎動物 的 干擾素 反應。

2025年2月25日 · RNA, complex compound of high molecular weight that functions in cellular protein synthesis and replaces DNA as a carrier of genetic codes in some viruses. RNA consists of ribose nucleotides and the nitrogenous bases adenine, guanine, cytosine, and uracil.

2018年8月15日 · What is the difference between RNA and DNA ? Please show me how to pronounce "mature RNA" and "maturation". Thank you. What does Viral RNA turned up on hard to reach surfaces mean?

2012年2月27日 · RNA is known to form an A-form helix, while DNA generally forms a B-form helix under physiological conditions. From left to right: A-form DNA, B-form DNA, Z-form DNA. Image created by Richard Wheeler. The preference of RNA for the different conformation is supposed to be caused by the 2'-OH, my question is now how exactly this favors the A-helix?

2023年7月29日 · Ribonucleic acid (RNA) is a molecule that is present in the majority of living organisms and viruses. It is made up of nucleotides, which are ribose sugars attached to nitrogenous bases and phosphate groups. The nitrogenous bases include adenine, guanine, uracil, and cytosine.

2 天之前 · Ribonucleic acid (abbreviated RNA) is a nucleic acid present in all living cells that has structural similarities to DNA. Unlike DNA, however, RNA is most often single-stranded. An RNA molecule has a backbone made of alternating phosphate groups and the sugar ribose, rather than the deoxyribose found in DNA.

2016年8月1日 · The inability of A-form RNA to form Hoogsteen base pairs provides a mechanism for how post-transcriptional modifications can disrupt RNA structure and might help explain why DNA is the...

Every ribonucleic acid begins its cellular life as a transcript. If the transcript or its processing product has a function it should be regarded an RNA. Nonfunctional transcripts, by-products from processing, degradation intermediates, even those ...

Every ribonucleic acid begins its cellular life as a transcript. If the transcript or its processing product has a function it should be regarded an RNA. Nonfunctional transcripts, by-products from processing, degradation intermediates, even those originating from …