Discuss the classification of virus types of rock and on the their mode of formation supports you answer with example
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Answer:
Virus classification is the process of naming viruses and placing them into a taxonomic system similar to the classification systems used for cellular organisms.
Viruses are mainly classified by phenotypic characteristics, such as morphology, nucleic acid type, mode of replication, host organisms, and the type of disease they cause. The formal taxonomic classification of viruses is the responsibility of the International Committee on Taxonomy of Viruses (ICTV) system, although the Baltimore classification system can be used to place viruses into one of seven groups based on their manner of mRNA synthesis. Specific naming conventions and further classification guidelines are set out by the ICTV.
A catalogue of all the world's known viruses has been proposed and, in 2013, some preliminary efforts were underway.
Answer:
Virus classification is the process of naming viruses and placing them into a taxonomic system similar to the classification systems used for cellular organisms.
Viruses are mainly classified by phenotypic characteristics, such as morphology, nucleic acid type, mode of replication, host organisms, and the type of disease they cause. The formal taxonomic classification of viruses is the responsibility of the International Committee on Taxonomy of Viruses (ICTV) system, although the Baltimore classification system can be used to place viruses into one of seven groups based on their manner of mRNA synthesis. Specific naming conventions and further classification guidelines are set out by the ICTV.
A catalogue of all the world's known viruses has been proposed and, in 2013, some preliminary efforts were underway.[1]
The International Committee on Taxonomy of Viruses began to devise and implement rules for the naming and classification of viruses early in the 1970s, an effort that continues to the present. The ICTV is the only body charged by the International Union of Microbiological Societies with the task of developing, refining, and maintaining a universal virus taxonomy.[6] The system shares many features with the classification system of cellular organisms, such as taxon structure. However, some differences exist, such as the universal use of italics for all taxonomic names, unlike in the International Code of Nomenclature for algae, fungi, and plants and International Code of Zoological Nomenclature.[7]
Viral classification starts at the level of realm and continues as follows, with the taxonomic suffixes in parentheses:[7]
Realm (-viria)
Subrealm (-vira)
Kingdom (-virae)
Subkingdom (-virites)
Phylum (-viricota)
Subphylum (-viricotina)
Class (-viricetes)
Subclass (-viricetidae)
Order (-virales)
Suborder (-virineae)
Family (-viridae)
Subfamily (-virinae)
Genus (-virus)
Subgenus (-virus)
Species
Unlike the system of binomial nomenclature adopted in cellular species, there is currently no standardized form for virus species names. At present, the ICTV mandates that a species name must contain as few words as possible while remaining distinct, and must not only contain the word virus and the host name.[8] Species names often take the form of [Disease] virus, particularly for higher plants and animals. In 2019, the ICTV published a proposal to adopt a more formalized system of binomial nomenclature for virus species names, to be voted on in 2020.[9] However, some virologists later objected to the potential naming system change, arguing that the debate came while many in the field were preoccupied due to the COVID-19 Pandemic.[10]
As of 2019, all levels of taxa except subrealm, subkingdom, and subclass are used. Four incertae sedis realms, one incertae sedis order, 24 incertae sedis families, and three incertae sedis genera are recognized:[11]
Realms: Duplodnaviria, Monodnaviria, Riboviria, and Varidnaviria
Incertae sedis order: Ligamenvirales
Incertae sedis families:
Alphasatellitidae
Ampullaviridae
Anelloviridae
Avsunviroidae
Baculoviridae
Bicaudaviridae
Clavaviridae
Finnlakeviridae
Fuselloviridae
Globuloviridae
Guttaviridae
Halspiviridae
Hytrosaviridae
Nimaviridae
Nudiviridae
Ovaliviridae
Plasmaviridae
Polydnaviridae
Portogloboviridae
Pospiviroidae
Spiraviridae
Thaspiviridae
Tolecusatellitidae
Tristromaviridae
Incertae sedis genera: Deltavirus, Dinodnavirus, Rhizidiovirus