replication RNA

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• RNA interference — (RNAi) is a mechanism that inhibits gene expression at the stage of translation or by hindering the transcription of specific genes. RNAi targets include RNA from viruses and transposons (significant for some forms of innate immune response), and …   Wikipedia

• RNA-dependent RNA polymerase — (RDRP), or RNA replicase, is an enzyme that catalyzes the replication of RNA from an RNA template. This is in contrast to a typical RNA polymerase, which catalyzes the transcription of RNA from a DNA template.Viral RDRPs were discovered in the… …   Wikipedia

• Replication — Rep li*ca tion ( k? sh?n), n. [L. replicatio. See {Reply}.] 1. An answer; a reply. Shak. [1913 Webster] Withouten any repplicacioun. Chaucer. [1913 Webster] 2. (Law Pleadings) The reply of the plaintiff, in matters of fact, to the defendant s… …   The Collaborative International Dictionary of English

• RNA-directed RNA polymerase — RNA di·rect·ed RNA po·lym·er·ase (dĭ rekґtəd pə limґər ās) [EC 2.7.7.48] an enzyme of the transferase class that catalyzes the template directed step by step addition of ribonucleotides to the 3′ end of a growing… …   Medical dictionary

• RNA virus — An RNA virus is a virus that has RNA (ribonucleic acid) as its genetic material.[1] This nucleic acid is usually single stranded RNA (ssRNA) but may be double stranded RNA (dsRNA).[2] The ICTV classifies RNA viruses as those that belong to Group… …   Wikipedia

• RNA world hypothesis — A comparison of RNA (left) with DNA (right), showing the helices and nucleobases each employs. The RNA world hypothesis proposes that life based on ribonucleic acid (RNA) pre dates the current world of life based on deoxyribonucleic acid (DNA),… …   Wikipedia

• Replication fork — The replication fork is a structure that forms during DNA replication. It is created by helicases, which break the hydrogen bonds holding the two DNA strands together. The resulting structure has two branching prongs , each one made up of a… …   Wikipedia

• RNA — For other uses, see RNA (disambiguation). A hairpin loop from a pre mRNA. Highlighted are the nucleobases (green) and the ribose phosphate backbone (blue). Ribonucleic acid (English pronunciation: /raɪbɵ.njuːˌkleɪ.ɨk ˈæsɪd/), or RNA, is one of… …   Wikipedia

• RNA — Die Ribonukleinsäure ist eine Nukleinsäure, das heißt eine Kette aus vielen Nukleotiden (ein so genanntes Polynukleotid). Im internationalen und im wissenschaftlichen Sprachgebrauch wird die Ribonukleinsäure mit der englischen Abkürzung RNA… …   Deutsch Wikipedia

• RNA-Welt-Hypothese — Strukturmodell eines Ribozyms, eines Bestandteils der RNA Welt Hypothese Die RNA Welt Hypothese ist eine Theorie, die besagt, dass eine Welt mit Leben basierend auf Ribonukleinsäuren (RNA) als universeller Baustein zur Informationsspeicherung und …   Deutsch Wikipedia

• RNA-Welt — Die chemische Evolution ist die Entstehung der organischen Molekülen aus anorganischen Molekülen (Abiogenese) im Hadaikum zwischen der Entstehung der Erde vor etwa 4,6 Milliarden Jahren und der Entstehung des Lebens (Beginn der biologischen… …   Deutsch Wikipedia