RNA virus

A virus in which the genetic material is RNA. The RNA may be either double- or single-stranded. There are 6 classes of viruses. The DNA viruses constitute classes I and II. The RNA viruses make up the remaining classes. Class III viruses have a double-stranded RNA genome. Class IV viruses have a positive single-stranded RNA genome, the genome itself acting as mRNA (messenger RNA. Class V viruses have a negative single-stranded RNA genome used as a template for mRNA synthesis. Class VI viruses have a positive single- stranded RNA genome but with a DNA intermediate not only in replication but also in mRNA synthesis.

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RNA virus n a virus (as a paramyxovirus or a retrovirus) whose genome consists of RNA

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a virus whose genome consists of RNA; called also ribovirus.

Medical dictionary. 2011.

Look at other dictionaries:

  • 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-Virus — Als RNA Viren (deutsch RNS Viren) bezeichnet man Viren, deren Erbmaterial (Genom) aus RNA (Abkürzung für englisch ribonucleic acid, „Ribonukleinsäure“) besteht. Etwa 80 % aller Virusspezies sind RNA Viren. Dazu gehören die meisten… …   Deutsch Wikipedia

  • RNA virus — /ˌar ɛn eɪ ˈvaɪrəs/ (say .ahr en ay vuyruhs) noun a virus which has RNA as its genetic material, as SARS, influenza and hepatitis C. Compare DNA virus …   Australian English dictionary

  • RNA virus — noun Date: 1963 a virus (as a paramyxovirus or a retrovirus) whose genome consists of RNA …   New Collegiate Dictionary

  • RNA virus — any virus containing RNA; retrovirus. [1960 65] * * * …   Universalium

  • RNA virus — noun a virus in which the genetic information is stored in the form of RNA (as opposed to DNA) …   English new terms dictionary

  • RNA virus — n. mcr any virus containing RNA; retrovirus • Etymology: 1960–65 …   From formal English to slang

  • RNA virus — any virus containing RNA; retrovirus. [1960 65] …   Useful english dictionary

  • RNA virus — noun Any of many viruses that possess ribonucleic acid as their genetic material and do not replicate using DNA …   Wiktionary

  • negative-stranded RNA virus — Class V viruses that have an RNA genome that is complementary to the mRNA, the positive strand. They also carry the virus specific RNA polymerase necessary for the synthesis of the mRNA. Includes Rhabdoviridae, Paramyxoviridae and Myoviridae (eg …   Dictionary of molecular biology

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