Baltimore Classification System

Examples of Baltimore Classification System in the following topics:

• The Baltimore Virus Classification

  • The Baltimore classification groups viruses into families depending on their type of genome.
  • Virus classification is the process of naming viruses and placing them into a taxonomic system.
  • Much like the classification systems used for cellular organisms, virus classification is the subject of ongoing debate and proposals.
  • Baltimore classification (first defined in 1971) is a classification system that places viruses into one of seven groups depending on a combination of their nucleic acid (DNA or RNA), strandedness (single-stranded or double-stranded), Sense, and method of replication .
  • List the characteristics of viruses that are useful for Baltimore classification

• RNA Oncogenic Viruses

  • RNA viruses are classified based on the Baltimore classification system and do not take into account viruses with DNA intermediates in their life cycle.

• Nongenetic Categories for Medicine and Ecology

  • Similar to the classification systems used for cellular organisms, virus classification is the subject of ongoing debate due to their pseudo-living nature.
  • Essentially, they are non-living particles with some chemical characteristics similar to those of life; thus, they do not fit neatly into an established biological classification system.
  • Currently there are two main schemes used for the classification of viruses: (1) the International Committee on Taxonomy of Viruses (ICTV) system; and (2) the Baltimore classification system, which places viruses into one of seven groups.
  • Baltimore classification is a system that places viruses into one of seven groups depending on a combination of:
  • Other classifications are determined by the disease caused by the virus or its morphology, neither of which is satisfactory as different viruses can either cause the same disease or look very similar.

• Plant DNA Viruses

  • DNA viruses belong to either Group I (double-stranded DNA; dsDNA) or Group II (single-stranded DNA; ssDNA) of the Baltimore classification system for viruses.

• Viral Identification

  • The Baltimore classification developed by David Baltimore is a virus classification system that groups viruses into families, depending on their type of genome (DNA, RNA, single-stranded (ss), double-stranded (ds), etc.) and their method of replication.
  • An example of Baltimore Virus classification I: dsDNA virusesII: ssDNA virusesIII: dsRNA virusesIV: (+)ssRNA virusesV: (−)ssRNA virusesVI: ssRNA-RT virusesVII: dsDNA-RT viruses

• Virus Classification

  • Biologists have used several classification systems in the past, based on the morphology and genetics of the different viruses.
  • The most commonly-used classification method today is called the Baltimore classification scheme which is based on how messenger RNA (mRNA) is generated in each particular type of virus.
  • The most commonly-used system of virus classification was developed by Nobel Prize-winning biologist David Baltimore in the early 1970s.
  • In addition to the differences in morphology and genetics mentioned above, the Baltimore classification scheme groups viruses according to how the mRNA is produced during the replicative cycle of the virus.
  • The Baltimore classification scheme, the most commonly used, was developed by Nobel Prize-winning biologist David Baltimore in the early 1970s.

• The Taxonomic Scheme

  • Bacterial taxonomy is the rank-based classification of bacteria.
  • In the scientific classification established by Carl von Linné, each distinct species is assigned to a genus using a two-part binary name (for example, Homo sapiens).
  • Despite there being little agreement on the major subgroups of the Bacteria, gram staining results were commonly used as a classification tool.
  • Major groups of this system include: Gracilicutes (gram negative); Firmacutes (gram positive); Mollicutes (gram variable, e.g.
  • Outline the factors that play a role in the classification of bacterial taxonomy

• The Growth of Cities

  • In the early 1800s, the ports of Boston, Philadelphia, Baltimore, and New York were sites of rapid urban development.
  • In 1811, New York adopted a grid system of numbered streets and avenues to efficiently develop and sell property in Manhattan.
  • Other Baltimore businessmen also contributed to the city's development.
  • The membership of political parties in the Second Party System was reflective of urbanization and wealth.
  • A drawing of the plans for New York City's grid system, adopted in 1811.

• The Levels of Classification

  • Taxanomic classification divides species in a hierarchical system beginning with a domain and ending with a single species.
  • Taxonomy (which literally means "arrangement law") is the science of classifying organisms to construct internationally-shared classification systems with each organism placed into more and more inclusive groupings.
  • The taxonomic classification system (also called the Linnaean system after its inventor, Carl Linnaeus, a Swedish botanist, zoologist, and physician) uses a hierarchical model.
  • At each sublevel in the taxonomic classification system, organisms become more similar.
  • The taxonomic classification system uses a hierarchical model to organize living organisms into increasingly specific categories.

• Evaluating Sources

  • Libraries are organized according to standard systems of library classification.
  • Classification systems can be divided into three types depending on how they are used:
  • An example is the Swedish library classification system, SAB (Sveriges Allmänna Biblioteksförening).
  • These classification systems help group books and other sources together based on shared information such as subject matter.
  • Using a bibliographic classification system in particular can help you begin evaluating a source for academic papers and projects.