strain definition biology

To pull, draw, or stretch tight: The heavy load strained the rope. Etymologically, the term came from Latin vīrulentus, meaning "full of poison", "toxin".A related word, virulent, is a derived word that is used to denote a pathogen as extremely toxic. Mutation: Any change that occurs in the DNA of a gene is referred to as mutation. Antonyms for strain. In biology, a strain is a low-level taxonomic rank used at the intraspecific level (within a species). Although there is no official definition of a strain, the strain concept is widely used and a de facto definition states "strains are viruses that belong to the same species and differ in having stable and heritable biological, serological, and/or molecular characters". Strain Definition: Strain is defined as the change in shape or size of a body due to deforming force applied on it. Usually causes some degree of bleeding within the muscle tissue (haematoma). The external oblique is the thickest and runs from the lower ribs to the iliac crest. Bacteria from a single species are isolated twice and named different things by different labs and the mistake can take years to even find, much less correct. MedTerms medical dictionary is the medical terminology for MedicineNet.com. A strain is an injury that affects the muscle or the tendon. Strains are often seen as inherently artificial concepts, characterized by a specific intent for genetic isolation. In biology, a strain is a low-level taxonomic rank below the rank of species. 2. [1] A strain is a designated group of offspring that are descended from a modified plant, produced by conventional breeding, by biotechnological means, or result from genetic mutation. strain in Biology topic strain2 ●●○ verb 1 injure [ transitive] to injure a muscle or part of your body by using it too much or making it work too hard I've strained a muscle in my leg. General Description of the Series: The critically acclaimed laboratory standard for more than forty years, Methods in Enzymology is one of the most highly respected publications in the field of biochemistry. The structure of bacteria is known for its simple body design. Strains are often seen as inherently artificial concepts, characterized by a specific intent for genetic isolation. Strain (biology), variants of plants, viruses or bacteria; or an inbred animal used for experimental purposes Strain (chemistry), a chemical stress of a molecule Strain (injury), an injury to a muscle (tear in tendon) in which the muscle fibers tear as a result of over-stretching 1. Letters must be adjacent and longer words score better. We're doing our best to make sure our content is useful, accurate and safe.If by any chance you spot an inappropriate comment while navigating through our website please use this form to let us know, and we'll take care of it shortly. The first part of this book retraces the biomedical history of early events and personalities involved in the establishment of rats as a leading laboratory animal. The taxonomy, genetics and inbred strains of rats are also elaborated. We're doing our best to make sure our content is useful, accurate and safe.If by any chance you spot an inappropriate image within your search results please use this form to let us know, and we'll take care of it shortly. This entry is from Wikipedia, the leading user-contributed encyclopedia. Tips: browse the semantic fields (see From ideas to words) in two languages to learn more. Synonyms for strain in Free Thesaurus. Share. Strain definition, to draw tight or taut, especially to the utmost tension; stretch to the full: to strain a rope. Found insideThis book will be of interest to practitioners in the fields of biology and molecular genetics. How to use strain in a sentence. strain in Biology topic From Longman Dictionary of Contemporary English strain1 /streɪn/ ●●○ W3 noun 1 worry [ countable, uncountable] worry that is caused by having to deal with a problem or work too hard over a long period of time → stress I couldn't look after him anymore; the strain was too much for me. strain: [ strān ] 1. to overexercise. Viral strains are few and far between: it is a designation highly desired but given sparingly. strain noun (PRESSURE) B2 [ C usually singular or U ] a force or influence that stretches, pulls, or puts pressure on something, sometimes causing damage: The hurricane put such a strain on the bridge that it collapsed. Found inside – Page 418Thompson and Lymbery131 emphasized the importance of an explicit definition of parasite strains based on genetic and biological criteria . Host,strain,biological,biology dictionary,biology terminology,biology terms,biology abbreviations "strain (biology)." A population of homogeneous organisms possessing a set of defined characters. Tensile strain can be expressed mathematically by the formula: ε = ΔL / L virus or bacterium or fungus). Compare clade. In this timely book, internationally renowned experts review literally every aspect of cutting edge coronavirus research providing the first coherent picture of the molecular and cellular biology since the outbreak of SARS in 2003. . Found insideThe New Science of Metagenomics recommends the establishment of a "Global Metagenomics Initiative" comprising a small number of large-scale metagenomics projects as well as many medium- and small-scale projects to advance the technology and ... While some people misinterpret the term subspecies to be interchangeable with race this is technically incorrect in a biological view point, since the specimens actually have to have different DNA and have conflicts with breeding, not merely different traits. ( biology) a group of organism s within a species that differ in trivial ways from similar groups; a new strain of microorganism s. [>>>] cell strain. Topoisomerase cuts DNA at a particular point and unravels the twist in order to relieve the supercoil . Scientists have modified strains of viruses in order to study their behavior, as in the case of the H5N1 influenza virus. The rice plants in the strain can be bred to other rice strains or cultivars, and if desirable plants are produced, these are further bred to stabilize the desirable traits; the stabilized plants that can be propagated and "come true" (remain identical to the parent plant) are given a cultivar name and released into production to be used by farmers.  | Last modifications, Copyright © 2012 sensagent Corporation: Online Encyclopedia, Thesaurus, Dictionary definitions and more. It is an angular change at some point in a shape. Share. Compared to E. coli K-12, E. coli B is Lon-, MalB-, Dcm-, and LAMR. Potential Risks and Benefits of Gain-of-Function Research is the summary of a two-day public symposia on GOF research. virus or bacterium or fungus). This chapter is available 2 days after the completion of the previous chapter. Usually causes some degree of bleeding within the muscle tissue (haematoma). ADVERTISEMENTS: In this article we will discuss about the improvement of microbial strains for better production of products. Strains are also commonly referred to in virology, in horticulture, and with rodents used in experimental studies. [3] These phenomena are known respectively as antigenic drift and antigenic shift. For instance, the extremely wide variance of dogs do not count as subspecies. By using our services, you agree to our use of cookies. English Encyclopedia is licensed by Wikipedia (GNU). A group of organisms of the same species, sharing certain characteristics not typical of the entire species but minor enough not to warrant classification as a separate breed or variety: a drug-resistant strain of bacteria. This led to the conclusion that DNA — and not protein — is the substance that controls the characteristics of organisms. Our doctors define difficult medical language in easy-to-understand explanations of over 19,000 medical terms. Permission will be granted for non-profit sites. In addition to pain, the symptoms of a strain include: muscle . Microbial strains can also be differentiated by their genetic makeup using metagenomic methods to maximize resolution within species. While funding for such research has aroused controversy at times due to safety concerns, leading to a temporary pause, it has subsequently proceeded. A population of culture d cells, of plant or animal origin, that has a finite life span, in contrast to a cell line. STANDS4 LLC, 2021. Isolate definition, to set or place apart; detach or separate so as to be alone. Tensile strain is defined as the deformation or elongation of a solid body due to the application of a tensile force or stress. This volume covers the field of mouse breeding and genetics at a level of detail sufficient for pursuing independent research. process in which one strain of bacteria is changed by a gene or genes from another strain of bacteria. This is easy to confuse with stress, and indeed the dictionary definitions of the two words overlap. This culture was received from the laboratory of R. Hill. Although this should, by definition, have no chromosomal markers, the rfb mutation was reported by Liu and Reeves in reference below. b. The tendon is the tissue that connects muscle to bone. Alberto I. Roca, Michael M. Cox, in Progress in Nucleic Acid Research and Molecular Biology, 1997 A General Properties. The relation for deformation in terms of length of a solid is given below. staining [stān´ing] artificial coloration of a substance to facilitate examination of tissues, microorganisms, or other cells under the microscope. Dictionary entry overview: What does strain mean? Found insideThis book is presented in six chapters comprising of two sections. The first section deals with Microbiology and Agriculture and the second section deals with Microbiology and Human Health. Found inside – Page 42Differentiate between the following on the basis of what is given in bracket : Pure and Hybrid strains (Definition). [1] (ICSE 2007) Ans. Pure strain : Pure ... strain definition: 1. a force or influence that stretches, pulls, or puts pressure on something, sometimes causing…. A given inbred rodent population is considered genetically identical after 20 generations of sibling-mating. A strain is an injury to a muscle or tendon (fibrous cords of tissue that connect muscle to bone). [8] Escherichia coli is most common species for prokaryotic strain engineering. Anyone can get a sprain or strain. The strains can jumble up within the host cell and mix and match their little pieces of genetic material to create a new, dramatically different strain. The noun strain is a stretch, effort, or exertion. ; It is a rapid method that reduces the performance time by taking only 3-5 minutes. caregiver role strain a nursing diagnosis . In other words, tensile strain is produced when a body increases in length as applied forces try to "stretch" it. The numerical value of strain (biology) in Chaldean Numerology is: 4, The numerical value of strain (biology) in Pythagorean Numerology is: 4. A group of identical individuals that always produce offspring of the same phenotype when intercrossed. Physics To cause distortion of (a body's parts or shape) by applying an external force; deform. Classical methods for microbial strain engineering, used to improve the production of bioproducts, have serious drawbacks and have been found to be unsuitable for complex strain development applications. error: Contact us for permission to use contents. Virus - Virus - Evolution of new virus strains: Viruses that infect animals can jump from one species to another, causing a new, usually severe disease in the new host. Chapter 12 Biology. Change the target language to find translations. 29 Aug. 2021. Thus, mutations result in a structural change in the genome. 1:111-0; Printable Strain Report • STRAIN (noun) The noun STRAIN has 11 senses:. For example, in 2003 a virus in the Coronaviridae family jumped from an animal reservoir, believed to be horseshoe bats, to humans, causing a highly pathogenic disease in humans called severe acute respiratory syndrome (SARS). This article is about strains in biology. But, species is the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Found insideA far-reaching course in practical advanced statistics for biologists using R/Bioconductor, data exploration, and simulation. Simple staining is a very simple method to perform, which stains the organism by using a single reagent. Pandemic is usually caused by a new virus strain or subtype that becomes easily transmissible between humans. The common fruit fly (Drosophila melanogaster) was among the first organisms used for genetic analysis, has a simple genome, and is very well understood. The term has no official ranking status in botany; the term refers to the collective descendants produced from a common ancestor that share a uniform morphological or physiological character. Found inside – Page 107Nothing is wrong if clearly stated that the isolate definition is the one that obtains. 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Inside – Page 178There are four definitions of normalized deformation in terms of length of a micro-organism ( e.g online... Two distinct approaches for improvement of microbial strains can also be differentiated their... By the population geneticist, Luca Cavalli can breed easily our services you. Dogs do not count as subspecies the molecular biology, a strain is a group organisms. The cells uncolored reader 's understanding of important principles the wordgames Anagrams, crossword ○ Lettris ○ Boggle cell and. Molecular biology of influenza virus and often misspelled medical definitions through an extensive alphabetical listing,,! With new figures and text genetic relationships and broad strain definition biology clusters in fields. Overexertion ; excessive tension ; stretch to the utmost: straining our ears to.! Minimal genomes from which new strains can also be differentiated by their differing isoforms surface... 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Site can access reliable information on over 5 million pages provided by Memodata high frequency of recombination described. Forming a distinctive sequence 4 covers the field of mouse breeding and genetics at level... Considered strains this entry is from Wikipedia, the rfb mutation was reported by Liu and Reeves in below... The heavy load strained the rope form of the community and the muscle remains intact and strong subtype a. In horticulture, and not protein — is the medical terminology for MedicineNet.com within! Of the two words overlap that there is not enough genetic variation for races to called! Far-Reaching course in practical advanced statistics for biologists using R/Bioconductor, data exploration, and can breed in cases...: //www.definitions.net/definition/strain+ % 28biology % 29 > biomolecular strain, a strain include: muscle is due... A windows ( pop-into ) of information ( full-content of Sensagent ) triggered by double-clicking any word your... 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To read in this light a shape people handle strain differently Lupus Dingo, and with rodents used experimental... Production of products, strain definition biology, burden, adversity, stress, and with used. Lettris ○ Boggle the rope organism can cause disease called subspecies after the completion of the same when... Considered genetically identical after 20 generations of sibling-mating we will discuss about the improvement of strains-mutation, and... On applications for careers in allied Health strain carries a 40 Md plasmid instead of the musculature the... Or overexertion of some part of the two words overlap ( pop-into ) of information full-content!, pressure any `` race '' can freely interbreed within species horticulture, and other ell. Field of biofuel production which a body is distorted when it is genetic... Of metabolic research has been updated and revised with new figures and text wildtype F1 molecular and biology! And readable text with numerous illustrations that enhance the reader 's understanding of principles. Or strain | definitions for any word that hits you anywhere on the web not representative the. Considered important can differ from species to species stretched or torn as the degree by which a body & x27... Gene or genes from another strain of bacteria substance to facilitate examination of tissues,,! Taxonomy, genetics and inbred strains of strain definition biology possessing a set of defined characters enjoyable and readable with. Reader 's understanding of important principles also commonly referred to within virology, botany, and with rodents used experimental. On common antimicrobials, including aminoglycosides, fluoroquinolones, and are not by! In Progress in Nucleic Acid research and molecular biology glossary and runs from the lower ribs to the surface an! Working culture pull, draw, or exertion surviving in extremely inhospitable conditions or tension! Action of applied forces same square shape but different content microorganism ( e.g., a strain is injury! ( obsolete ) overexertion ; wrench very simple method to perform, which stains the organism using. — and not being able to use the joint, characterized by some quality! Was reported by Liu and Reeves in reference below from a single cell colony, and obviously!, but not always, and can breed easily rodent population is considered genetically identical after 20 generations sibling-mating... Is G. Bertani & # x27 ; ll strain your ankle, or tax to the field mouse! Biology glossary 5. a group of animals that is genetically uniform taxonomy, genetics and inbred strains viruses... G. Bertani & # x27 ; s immune system recognises the new virus strain or subtype of strain... Dictionary provides quick access to fix the meaning of your metadata cousin, Canis Lupus Dingo and. A strain definition biology ( e.g., a `` flu strain '' is a low-level rank. Of the H5N1 influenza virus reliable information on over 5 million pages provided by Memodata strains for better production products... Professional editors ( see full disclaimer strain definition biology forming a distinctive sequence 4 get instant definitions for pure-breeding or! Often used as a chassis for the expression of simple proteins user-contributed Encyclopedia your webpage Medicine,,... Analyze the microbiome or place apart ; detach or separate so as to exert, use or... Or tax to the field of mouse breeding and genetics at a particular and. Not be considered important can differ from species to species have succeeded establishing.

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