Geneticdistance refers to the genetic divergence between species or between populations within a species. It considers a variety of parameters used to measure the geneticdistance. Smaller genetic distances indicate a close genetic relationship whereas large genetic distances indicate a more distant genetic relationship. Geneticdistance can be used to compare the genetic similarity between different species, such as humans and chimpanzees. Within a species geneticdistance can be used to measure the divergence between different sub species. In its simplest form, the geneticdistance between two ... individuals is 50.4 among Basques, 41.2 in France and 41.1 in England. Thus the genetic difference between the Basques and French is 9.2 and the genetic difference between the French and the English is 0.1 for the RH negative trait. The geneticdistance of several individual traits can then be averaged to compute an overall geneticdistance. ref name CavalliSforza Genes, Peoples, and Languages By L. L. Luigi Luca Cavalli Sforza ISBN 0520228731 ref Measures of geneticdistance There are several measures used to indicate geneticdistance. ref http www.uwyo.edu dbmcd molmark lect06 lect6.html Population Genetics IV Genetic distances biological vs. geometric approaches. ref These include Fixation index A commonly used measure of geneticdistance is the fixation index which varies between 0 and 1 ... that two populations are different species. Nei s standard geneticdistance This measure assumes ... al. title SAMPLING VARIANCES OF HETEROZYGOSITY AND GENETICDISTANCE url http www.genetics.org cgi content ... projects microsat distance.html Stanford University website on geneticdistance http helix.biology.mcmaster.ca brent node7.html The Estimation of GeneticDistance and Population Substructure from Microsatellite ... distance http nitro.biosci.arizona.edu ftDNA Distance.html Computing distance by stepwise genetic ... GeneticDistance Category Phylogenetics evolution stub genetics stub bg es ... more details
wiktionary geneticGenetic may refer to Genetics , in biology, the science of genes, heredity, and the variation of organisms Genetic, used as an adjective, refers to heredity of traits Gene , a unit of heredity in the genome of an organism Genetic linguistics , in linguistics, a relationship between two languages with a common ancestor language Genetic algorithm , in computer science, a kind of search technique modeled on evolutionary biology disambig simple Genetic ur ... more details
The Distance may refer to The distance boxing , a boxing match that lasts the maximum number of scheduled rounds The Distance The O.C. The Distance The O.C. , an episode of The O.C. The Distance film The Distance film , a 2006 independent documentary directed by Ash Adams The Distance , a novel by Eddie Muller In music The Distance Bob Seger album The Distance Bob Seger album The Distance Taylor Hicks album The Distance Taylor Hicks album The Distance song The Distance song , a song by Cake The Distance , a song by Bon Jovi from Bounce album Bounce The Distance , an album by Geoff Moore also the name of Moore s backing band See also Distance disambiguation disambig ... more details
dablink This article is about distance in the mathematics mathematical or physics physical sense. For other senses of the term, see distance disambiguation . Citations missing date March 2008 Distance is a numerical description of how far apart objects are. In physics or everyday discussion, distance ... , a distance function or Metric mathematics metric is a generalization of the concept of physical distance. A metric is a function that behaves according to a specific set of rules, and provides ... away from each other. In most cases, distance from A to B is interchangeable with distance between B and A . Mathematics see also Metric mathematics Geometry In neutral geometry , the distance between ... sqrt Delta x 2 sqrt x 2 x 1 2 . , math In analytic geometry , the distance between two points of the Cartesian coordinate system xy plane can be found using the distance formula. The distance between ... sub , z sub 2 sub in Cartesian coordinate system three space , the distance between them is math d sqrt ... theorem . In the study of complicated geometries, we call this most common type of distance Euclidean distance , as it is derived from the Pythagorean theorem , which does not hold in Non Euclidean geometry Non Euclidean geometries . This distance formula can also be expanded into the arc length arc length formula . Distance in Euclidean space In the Euclidean space R sup n sup , the distance between two points is usually given by the Euclidean distance 2 norm distance . Other distances, based ... , ..., x sub n sub and a point y sub 1 sub , y sub 2 sub , ..., y sub n sub , the Minkowski distance of order p p norm distance is defined as cellpadding 2 1 norm distance math sum i 1 n left x i y i right math 2 norm distance math left sum i 1 n left x i y i right 2 right 1 2 math p norm distance math left sum i 1 n left x i y i right p right 1 p math infinity norm distance math lim p to infty ... inequality does not hold. The 2 norm distance is the Euclidean distance , a generalization of the Pythagorean ... more details
Infobox Album See Wikipedia WikiProject Albums Name A Distance Type Album Artist Marie Chantal Toupin Cover Released September 30, 2008 Recorded Genre Pop music Pop Length 40 07 Label EDC Musique Producer Guy Tourville Reviews Last album Non N gociable This album A Distance Next album A Distance is the fifth album by Canadian singer Marie Chantal Toupin . It was released on September 30, 2008. Track listing A distance Lyrics and music Karine Nguyen, Claude Sen cal 3 36 Apprends moi Lyrics and music Claude Sen cal 3 21 Nous deux Lyrics and music Herv Desbois, Claude Sen cal 3 42 Si je pouvais Lyrics and music Paul Dara che, Claude Sen cal 4 07 Comme un homme Lyrics Claude Sen cal, Marie Chantal Toupin music Claude Sen cal 3 20 Tu verras bien Lyrics Herv Desbois, Claude Sen cal Music Claude Sen cal 3 05 Une fois pour toutes Lyrics and music Claude Sen cal 3 59 Pas facile Lyrics Marjol ne Morin, Pascal Mailloux music Pascal Mailloux , Jean Pierre Limoges 3 55 Celui que je veux Lyrics and music Gildas Arzel, Nanette Workman 4 10 Marchons seul Lyrics and music Claude Sen cal 3 10 La guerre est finie Lyrics and music Christian Sbrocca, Richard Turcotte 3 37 DEFAULTSORT Distance, A Category 2008 albums 2000s pop album stub ... more details
Genetic relationship may refer to Geneticdistance , in genetics Genetic relationship linguistics , in language disambig Short pages monitor This long comment was added to the page to prevent it being listed on Special Shortpages. It and the accompanying monitoring template were generated via Template Longcomment. Please do not remove the monitor template without removing the comment as well. ... more details
A genetic operator is an operator dn used in genetic algorithms to maintain genetic diversity , known as Mutation genetic algorithm and to combine existing solutions into others, Crossover genetic algorithm . The main difference between them is that the mutation operators operate on one chromosome, that is, they are unary, while the crossover operators are binary operators. Genetic variation is a necessity for the process of evolution . Genetic operators used in genetic algorithms are analogous to those which occur in the natural world survival of the fittest , or selection genetic algorithm selection reproduction crossover genetic algorithm crossover , also called recombination and mutation genetic algorithm mutation . Types of Operators 1. Mutation genetic algorithm 2. Crossover genetic algorithm DEFAULTSORT Genetic Operator Category Genetic algorithms compu AI stub ar ca Operador gen tic algorisme gen tic de Genetischer Operator es Operador gen tico zh ... more details
Genetic hitchhiking is the process by which an evolution arily neutral or deleterious allele or mutation may spread through the gene pool by virtue of being linked to a gene that is positively selected. ref Cite journal doi 10.1098 rstb.2000.0716 pmid 11127900 volume 355 issue 1403 pages 1553 1562 last Barton first N H title Genetic hitchhiking journal Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences accessdate 2009 09 23 date 2000 11 29 pmc 1692896 ref More generally, genetic hitchhiking can refer to the process by which a gene s frequency changes due to selection operating upon linked genes. Proximity on a chromosome may allow genes to be dragged through the selection process due to an advantageous gene nearby. The most often cited example of this is one of a hypothetical mutator which increases the general mutation mutation rate in the area around it. M A On this chromosome the gene M is a mutator allele, increasing the rate of mutation in the surrounding area. A is an allele which is at fixation in the population that is, all individuals possess this allele in the homozygous state. Due to the increased mutation rate, the A allele may be mutated into a new, advantageous allele, A . M A The individual in which this chromosome lies will now have a selective advantage over other individuals of this species, so the allele A will spread through the population by the normal processes of evolution natural selection . M, due to its proximity to A , will be dragged through into the general population. This process only works when M is very close to the allele it has mutated. A greater distance would increase the chance of recombination separating ... allele to appear, but genetic hitchhiking can also happen by chance alone. Whether a neutral ... by sampling error, that is genetic drift . But it may instead be dominated by whether the mutation is linked to a good genetic background this is known as genetic draft. ref Cite journal ... more details
Genetic memory may refer to Genetic memory biology , present if the state of a biological system depends on its past history in addition to present conditions Genetic memory psychology , a memory present at birth that exists in the absence of sensory experience Genetic memory parapsychology , postulated that specific experience is encoded in genes Genetic memory computer science , an artificial neural network combination of genetic algorithm and the mathematical model of sparse distributed memory Genetic memory in fiction disambig ar es Memoria gen tica pl Pami genetyczna ... more details
Mergefrom Genetic algorithms in economics date December 2010 A genetic algorithm GA is a Search algorithm ... s. Genetic algorithms belong to the larger class of evolutionary algorithm s EA , which generate ... inheritance , Mutation genetic algorithm mutation , selection genetic algorithm selection , and crossover genetic algorithm crossover . Methodology In a genetic algorithm, a population of strings called chromosome genetic algorithm chromosomes or the genotype of the genome , which encode candidate ... number of generations, a satisfactory solution may or may not have been reached. Genetic ... , economics , chemistry , manufacturing , mathematics , physics and other fields. A typical genetic algorithm requires a genetic representation of the solution List of academic disciplines domain , a fitness ... way. The main property that makes these genetic representations convenient is that their parts are easily ... like representations are explored in genetic programming and graph form representations are explored in evolutionary programming . The fitness function is defined over the genetic representation and measures ... interactive genetic algorithms are used. Once we have the genetic representation and the fitness function ... solutions are likely to be found. Selection Main Selection genetic algorithm During each successive generation, a proportion of the existing population is selection genetic algorithm selected to breed ... time consuming. Reproduction Main Crossover genetic algorithm Mutation genetic algorithm The next step is to generate a second generation population of solutions from those selected through genetic operator s crossover genetic algorithm crossover also called recombination , and or mutation genetic ... . Genetic algorithms with multi parent recombination . PPSN III Proceedings of the International ... parent Genetic Algorithms Without Selection . Advances in Artificial Life 403&ndash 412. ISBN 978 .... Although Crossover and Mutation are known as the main genetic operators, it is possible to use ... more details
out the number of recombinants it is possible to obtain a measure for the distance between the genes. This distance is called a genetic map unit m.u. , or a centimorgan and is defined as the distance ... we can measure the geneticdistance between two loci, based upon their recombination frequency ... underestimate the geneticdistance between two loci. During meiosis, chromosomes assort randomly into gamete ...Genetic linkage is the tendency of certain Locus genetics loci or alleles to be inherited together. Genetic ... are separated. The relative distance between two genes can be calculated by taking the offspring of an organism showing two linked genetic traits, and finding the percentage of the offspring ... is lower than 50 are typically thought to be linked. Genetic linkage can also be understood by looking ... chromosomes or separated by a great enough distance on the same chromosome that recombination occurs at least half of the time. The latter is known as genetic linkage. This occurs as an exception .... Discovery Genetic linkage was first discovered by the United Kingdom British geneticists ... Rediscovery of Mendel.27s work rediscovered . The understanding of genetic linkage was expanded ... linked genes differs led to the idea that crossover frequency might indicate the distance separating genes on the chromosome . Alfred Sturtevant , a student of Morgan s, first developed genetic maps, also known as linkage maps. Sturtevant proposed that the greater the distance between linked genes, the greater ... of mapping function , from Introduction to Genetic Analysis. Griffiths, A. J. F. Miller, J. H. Suzuki ... recombination events. Linkage map A linkage map is a genetic map of a species or experimental population that shows the position of its known genes or genetic markers relative to each other in terms of recombination frequency, rather than as specific physical distance along each chromosome. Linkage mapping is critical for identifying the location of genes that cause genetic diseases. A genetic ... more details
Genetic recombination is a process by which a molecule of nucleic acid usually DNA , but can also be RNA is broken and then joined to a different one. Recombination can occur between Homology biology similar molecules of DNA, as in homologous recombination , or dissimilar molecules, as in non homologous ... immune system , a type of genetic recombination called V D J recombination helps immune cells rapidly diversify to recognize and adapt to new pathogen s. The shuffling of genes brought about by genetic recombination is thought to have many advantages, as it is a major engine of genetic variation ... s of an Asexual reproduction asexual population accumulate genetic deletion deleterious mutations in an irreversible manner. In genetic engineering , recombination can also refer to artificial and deliberate ... recombinant DNA . A prime example of such a use of genetic recombination is gene targeting , which ... on genetic recombination are also applied in protein engineering to develop new proteins of biological interest. Genetic recombination is catalysis catalyzed by many different enzyme s, called recombinase ... exchange genetic information. ref name Alberts cite book last Alberts first Bruce title Molecular ..., the recombination frequency frequency of recombination between two locations depends on their distance ... causing gene. ref Cite web title Access Excellence work Crossing over Genetic Recombination publisher The National Health Museum Resource Center url http www.accessexcellence.org RC AB BC Genetic Recombination.php ... conversion, a section of genetic material is copied from one chromosome to another, without the donating ... class switching B cells of the immune system perform genetic recombination, called immunoglobulin ... biochem courses 3107 Lectures Topics Recombination holliday.html The Holliday Model of Genetic Recombination MeshName Genetic recombination http www.blackwellpublishing.com trun artwork Animations ... scienceprimer Genetic recombination Category Cellular processes Category Molecular genetics ar ... more details
genetic genealogy Genetic genealogy is the application of genetics to Genealogy traditional genealogy . Genetic genealogy involves the use of genealogical DNA test ing to determine the level of Geneticdistance individuals genetic relationship between individuals. History Image George Darwin sepia tone.jpg ..., including historical interpretive reports and customized research. Geneticdistance among ... a common set of genetic markers and should perhaps preserve some family resemblance to each other .... In April 2000, Family Tree DNA began offering the first genetic genealogy tests to the public ..., genetic genealogy as a field began growing rapidly. By 2003, the field of DNA testing of surnames ... dramatically. ref http www.bellaonline.com articles art12474.asp Guido Deboeck, Genetic Genealogy Becomes Mainstream , BellaOnline, accessed 19 Feb 2009 ref Another milestone in the acceptance of genetic ... of genetic genealogy. ref https www3.nationalgeographic.com genographic The Genographic ... not discriminating enough to provide conclusive results for a common surname. Genetic laboratories ... index.php Genebase , Genetic Genealogy, accessed 19 Feb 2009 ref Annual sales of genetic ... big is the genetic genealogy market How Big Is the Genetic Genealogy Market? , The Genetic Genealogist ... The two most common types of genetic genealogy tests are Y chromosome Y DNA paternal line and Mtdna ... and ancient via SNPs genetic ancestry. A Y chromosome STR test will reveal a haplotype , which should ... haplogroup , which defines a much larger genetic population. mtDNA testing involves sequencing .... Genetic genealogy has revealed astonishing links between peoples. For instance, it has shown that the ancient ... this science to the public. One example, mentioned in Genetic genealogy History History above .... Another example is the DNA Clans Genetic Ancestry Analysis, which measures a person s precise genetic ... of genetic genealogy. Citation needed date March 2009 Paternal and maternal DNA lineages Image ... more details
generations. As the difference, or geneticdistance , increases, the two separated populations ...Distinguish antigenic drift antigenic shift Good article Evolutionary biology Genetic drift or allelic ... year 1998 doi isbn 0 87893 189 9 page Glossary ref Genetic drift may cause gene variants to disappear completely, and thereby reduce genetic variation. The effect of genetic drift is larger in small populations ... importance of natural selection versus neutral processes, including genetic drift. Ronald Fisher held the view that genetic drift plays at the most a minor role in evolution, and this remained the dominant ... of molecular evolution , which claims that most instances where a genetic change Fixation population genetics spreads across a population although not necessarily changes in phenotypes are caused by genetic ... closer to what it was in the previous generation. Genetic drift is weaker in large populations the frequency ... with only 4 cans, it might only take a few iterations before they are all the same color. Genetic ... to have greater genetic diversity . ref cite web url http evolution.berkeley.edu evosite evo101 ... Berkeley accessdate 2009 11 01 ref File Random sampling genetic drift.gif thumb center 550px ... significantly. Genetic drift is therefore considered to be a consequential mechanism of evolutionary ... frac 1 16 frac 6 16 math Genetic drift occurs when a population s allele frequencies change due to random ... one. In practice, the Moran model and Wright Fisher model give qualitatively similar results, but genetic ... than genetic drift, is genetic hitchhiking genetic draft . ref name gillespie 2001 Cite journal ... relevant to its evolution? journal Evolution year 2001 pmid 11794777 ref Genetic draft describes ... at genetic linkage linked loci. Genetic draft has very different mathematical properties unlike genetic ... by gene flow migration , genetic mutation , or selection . ref cite book author Warren Ewens title ... generation, genetic drift drives a population towards genetic uniformity over time. When an allele ... more details
Refimprove date December 2009 Genetic representation is a way of representing solutions individuals in evolutionary computation methods. Genetic representation can encode appearance, behavior, physical qualities of individuals. Designing a good genetic representation that is expressive and evolvable is a hard problem in evolutionary computation. Difference in genetic representations is one of the major criteria drawing a line between known classes of evolutionary computation. Genetic algorithm s use linear binary representations. The most standard one is an array of bit s. Arrays of other types and structures can be used in essentially the same way. The main property that makes these genetic representations convenient is that their parts are easily aligned due to their fixed size. This facilitates simple crossover operation. Variable length representations were also explored in Genetic algorithm s, but crossover implementation is more complex in this case. Evolution strategy uses linear real valued representations, e.g. an array of real values. It uses mostly gaussian mutation and blending averaging crossover. Genetic programming GP pioneered tree like representations and developed genetic operator s suitable for such representations. Tree like representations are used in GP to represent and evolve functional programs with desired properties. ref http www.sover.net nichael nlc publications icga85 index.html Cramer, 1985 ref Human based genetic algorithm HBGA offers a way to avoid solving hard representation problems by outsourcing all genetic operators to outside agents, in this case, humans. The algorithm has no need for knowledge of a particular fixed genetic representation ... for free form and evolving genetic representations. Common genetic representations Genetic algorithm binary array binary tree genetic tree HBGA natural language parse tree References and notes reflist DEFAULTSORT Genetic Representation Category Evolutionary algorithms ... more details
about analysis of the linkage of trait biology traits due to the spatial arrangement of genes on the chromosome , an analysis which dates back to classical genetics Genetic linkage analysis of codons as defined through research on nucleic acids , which is often classed with reverse genetics Genetic code analysis of maternal inheritance related to mitochondrial DNA Mitochondrial DNA Mitochondrial inheritance medical, genealogy genealogical , legal and security applications of genetic research that are mainly directed at humans Genetic testing Genetic analysis can be used generally to describe methods both used in and resulting from the sciences of genetics and molecular biology , or to applied research applications resulting from this research. Genetic analysis may be done to identify genetic inherited disorders and also to make a differential diagnosis in certain somatic diseases such as cancer . Genetic analyses of cancer include detection of mutation s, fusion gene s, and DNA copy number changes. Genetic analyses include molecular technologies such as PCR , RT PCR , DNA sequencing , and DNA microarrays , and cytogenetics cytogenetic methods such as karyotyping and fluorescence in situ hybridisation . Please note This field is fast changing, definitions are in flux, there is historical and contemporary overlap of the following categories, and phrases like the results of genetic analysis can indicate any or all of the following, depending on the facts of the matter being described. br Category Genetics genetics stub ... more details
Genetic determinism is the belief that gene s determine physical and behavioral phenotype s. It is usually taken to mean that the genotype completely determines the phenotype, that is, the genes completely determine how an organism turns out ref http www.philosophytalk.org pastShows GeneticDeterminism.htm Philosophy Talk on Genetic Determinism ref or that genes alone determine human traits and behaviours. ref name melo martin cite journal author de Melo Mart n I title Firing up the nature nurture controversy bioethics and genetic determinism journal J Med Ethics volume 31 issue 9 pages 526 30 year 2005 month pmid 16131554 pmc 1734214 doi 10.1136 jme.2004.008417 url ref However, nowadays practically every geneticist has disavowed genetic determinism. ref name melo martin While it is well established that most phenotypic variability is strongly influenced by genes, it is clear that environment ... Citation needed date June 2010 br The term genetic determinism may also be applied to the mapping ... that behavior cannot affect genes, Weismann argued that only genetic mutation, not adaptations ... to Mayr, the organism responds to a dual causation, one based on laws of physics, the other based on a genetic ... history encoded in its genes. Genetic information both reflects a species descent and directs ... of genetic determinism remains the standard view of gene mapping Citation needed date May 2010 that is, the view ... of genetic determinism. According to Nusslein Volhard, who won a Nobel for her research into molecular ... be read faultlessly... In the fertilized egg, the genetic program is complete. ref Christiane ... ref She reiterates the reductionist approach even as she fleshes out a model of development based not on genetic ... organic form is thought to emerge at a particular place in the embryo on the basis of its distance ... Time Genetic Determinism p005461w Genetic Determinism http www.philosophy.umd.edu Faculty PGreenspan Res gen2.html Greenspan, P.S. 1998. Free will and genetic determinism locating the problem s Category ... more details
distinguish Genetic engineering In artificial intelligence , genetic programming GP is an evolutionary ... program s that perform a user defined task. It is a specialization of genetic algorithms GA where ... be assumed to involve the use of intelligence. Genetic programming GP is an evolutionary computation ... of people around the globe. Genetic Programming in a Nutshell In genetic programming we evolve a population ..., Chapter 12 ref http www.gp field guide.org.uk A Field Guide to Genetic Programming ref http cswww.essex.ac.uk ... 5 . The primary Genetic operators genetic operators that are used to create new programs from existing ... part of it. Algorithm 1.1 Genetic Programming Randomly create an initial population of programs from ... with a probability based on fitness to participate in genetic operations Section on Selection Selection . Create new individual program s by applying genetic operations with specified probabilities Genetic operators Genetic operators . reuse existing wiki text ref sec recombination . until ..., including Koza s four massive contributions. The Field Guide to Genetic Programming ref http www.gp field guide.org.uk A Field Guide to Genetic Programming ref is more recent and available online ... set of a GP system. use existing image File Genetic Program Tree.png alt GP syntax tree representing ... is typically guided by questions of convenience, efficiency, the genetic operations being used some ... method provide a very wide array of sizes or shapes on their own, Koza ref Genetic Programming ref ..., genetic operators in GP are applied to individuals that are probabilistically selected based ... that have been proposed. Goldberg, 1989 ref Genetic Algorithms in Search Optimization and Machine Learning ... used form of Crossover genetic algorithm crossover is subtree crossover . Given two parents, subtree .... So, their genetic material can freely be used without altering the original individuals. label fig ... points leads to crossover operations frequently exchanging only very small amounts of genetic ... more details
Unreferenced auto yes date December 2009 In biology , a genetic program of a cell is a physiology physiological change brought about by a temporal pattern of Transcription genetics activation of a particular subset of gene s. DEFAULTSORT Genetic Program Category Genetics Genetics stub ... more details
Unreferenced date April 2008 Expert subject Genetics date April 2008 A genetic isolate is population of organisms that has little genetic mixing with other organisms within the same species. This may result in speciation , but this is not necessarily the case. Genetic isolates may form new species in several ways allopatric speciation , in which two populations of the same species are geographically isolated from one another by an extrinsic barrier, and evolve intrinsic genetic reproductive isolation peripatric speciation , in which a small group of a population is separated from the main population, and experiences genetic drift parapatric speciation , in which zones of two diverging populations are separate, but do overlap somewhat partial separation is afforded by geography, so individuals of each species may come in contact from time to time, but selection for specific behaviours or mechanisms may prevent breeding between the two groups. sympatric speciation , a contentious method of speciation in which species diverge while inhabiting the same place. Human influences on genetic isolates include restricted Dog breeding breeding of dogs , or a community living secluded away from others such as Tristan da Cunha or Pitcairn Islands . A far larger and less secluded human genetic isolate is the ethnic Finns , natives of Finland see Finnish disease heritage . See also Language isolate Linkage disequilibrium DEFAULTSORT Genetic Isolate Category Speciation ... more details
Genetic structure refers to any pattern in the genetics genetic makeup of individuals within a population. In the absence of genetic structure, one can infer little to nothing about the genetic makeup of an individual by studying other members of the population. When genetic structure is present, on the other hand, much can be inferred. In trivial terms, all populations have genetic structure, because all populations can be characterised by their genotype or allele frequencies if only 1 of a large sample of moths drawn from a single population have spotted wings, then it is safe to assume that any unknown individual is unlikely to have spotted wings. A more complicated example arises in dense thicket s of plants, where plants tend to be pollination pollinated by near neighbours, and seed s tend to fall and germination germinate near the maternal plant. In such a scenario, plants tend to be more closely related to nearby plants than they are to distant plants and yet they are more likely to breed with nearby plants than they are with distant plants. Thus an inbreeding cycle is created that perpetuates the pattern of plants being closely related to near neighbours. This is a form of genetic structure because one can infer much about the genetic makeup of any individual plant simply by studying plants in its immediately neighbourhood. Category Genetics genetics stub Unreferenced date March 2010 ... more details
unreferenced date March 2011 Genetic ablation is a method of modifying DNA in order to disrupt the production of a specific gene. As genetic ablation may lead to Cell ablation , it can be used as a synonymous term at appropriate times. Uncategorized date March 2011 genetics stub ... more details
mergefrom Genism discuss Talk Genetic discrimination Merger proposal date January 2011 Discrimination sidebar Genetic discrimination occurs when people are treated differently by their employer or insurance company because they have a gene mutation that causes or increases the risk of an Genetic disorder inherited disorder . People who undergo genetic testing may be at risk for genetic discrimination. The results of a genetic test are normally included in a person s medical record s. Where? When ... the right to look at an employee s medical records. As a result, genetic test results could affect a person s insurance coverage or employment. People making decisions about genetic testing should be aware .... Fear of discrimination is a concern among people considering genetic testing . Several countries have laws that help protect people against genetic discrimination however, genetic testing is a fast ... genetic discrimination was first coined by the Council for Responsible Genetics CRG . ref http ... issued a report titled Genetic Information and Health Insurance . The report recommended that people ... jointly developed guidelines to assist federal and state agencies in preventing genetic discrimination ... be prohibited from using genetic information or an individual s request for genetic services to deny ... s genetic information without that individual s written authorization. Written authorization, the groups ... in the mid 1990s on genetic discrimination in health insurance and the workplace. The findings and recommendations of the workshop participants were published in Science Genetic Information and the Workplace ... that some individuals avoid genetic testing out of fear it will impede their ability to purchase insurance ... of genetic information by health insurers Health insurers do not currently require applicants for coverage to undergo genetic testing. Employer sponsored group coverage is underwritten on a group basis, rather than an individual basis. Thus, the future use of genetic information in medical underwriting ... more details
Genetic gain is the amount of increase in performance that is achieved through artificial genetic improvement programs. This is usually used to refer to the increase after one generation has passed. ref College of Agriculture, http www.ca.uky.edu agripedia glossary genegain.htm Genetic Gain University of Kentucky , accessed 2010 11 23 ref References Reflist colwidth 60em Category Biology Category Genetics Category Agriculture ... more details
Genetic correlation is the proportion of variance that two traits share due to gene tic causes ref Neale, M. C., & Maes, H. H. 1996 . Methodology for genetics studies of twins and families 6th ed. . Dordrecht, The Netherlands Kluwer. ref . Outside the theoretical boundary case of traits with zero heritability , the genetic correlation of traits is independent of their heritability i.e., two traits can have a very high genetic correlation even when the heritability of each is low and vice versa. The genetic correlation, then, tells us how much of the genetic influence on two traits is common to both if it is above zero, this suggests that the two traits are influenced by common genes . This can be an important constraint on conceptualizations of the two traits traits which seem different phenotypically but which share a common genetic basis require an explanation for how these genes can influence both traits. Computing the genetic correlation Estimates of a genetic correlation obviously require a genetically informative sample, such as a twin study . Given a genetic covariance matrix, the genetic correlation is computed by standardizing this, i.e., by converting the covariance matrix ... genetic variance covariance matrix table border 0 cellspacing 5 cellpadding 5 tr td td td Height ... Then the genetic correlation is .55, as seen is the standardized matrix below table border 0 cellspacing ... are used to calculate both the genetic covariance matrix and its standardized form. In R programming language R , cov2cor will standardize the matrix. Typically, published reports will provide genetic ... for computing the genetic covariance the variance within the genetic covariance matrix is lost because of the standardizing process , so you cannot readily estimate the genetic correlation of two traits ..., allow the viewer to see shared genetic effects as opposed to the genetic correlation by following .... See also Quantitative genetics Heritability References references DEFAULTSORT Genetic Correlation ... more details
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