Loading...
  • Fluctuations
  • A broad but not mechanistic answer from the classical theory is simply that those populations probably faced environments that fluctuated rapidly enough to favor mutator genes and that such fluctuations may be very common for bacteria. (genetics.org)
  • causal
  • These biasing effects could result in linguistic differences between populations, producing nonspurious (causal) correlations between genetic and linguistic diversities. (pnas.org)
  • genotypes
  • However, through segregation analysis, probable genotypes can be assigned to individuals that themselves were not tested, using known genotypes on relatives and a starting (presumed) gene frequency. (unl.edu)
  • The value of these probable genotypes in estimation of gene frequency was considered. (unl.edu)
  • In using probable genotypes the bias was lessened but the estimate of gene frequency still reflected the sampling strategy rather than the true population frequency. (unl.edu)
  • resistance
  • Selection pressure from the race-specific resistance genes carried in canola cultivars has probably played a significant role in the current Avr profile, which may have also contributed to the recent increase in blackleg observed in western Canada. (gc.ca)
  • ARGO (Antibiotic Resistance Genes Online) is intented to be a comprehensive web Resource for Scientists, Clinicians and other people who are interested in the looming problem of rise and spread of antibiotic resistant pathogens worldwide. (bioinformatics.org)
  • As the rapid spread of antibiotic resistance by horizontal transfer so strikingly and frighteningly illustrates, bacteria can and often will acquire beneficial genes from external sources, so long as these genes exist somewhere in the prokaryotic world ( L evin and B ergstrom 2000 ). (genetics.org)
  • novel
  • There should be examples of novel genes being developed, that's what I'm looking for. (skeptoid.com)
  • What happens when bacteria are faced with novel or fluctuating environmental conditions and no external sources of beneficial genes are available? (genetics.org)
  • small
  • With random sampling, even when a small proportion of a line was genotyped (0ยท10), the gene frequency of the population was well estimated from the across-line mean. (unl.edu)
  • The Founder Effect Another example of genetic drift Occasionally, a small number of individuals from a large population may migrate away, or become isolated from, their original population. (docplayer.net)
  • Computer simulations ( 23 , 24 ) support the idea that such biases could influence the structure of languages emerging over many generations of cultural change, and mathematical models ( 25 ) suggest that, under appropriate conditions, extremely small biases at the individual level can be amplified by this process of cultural transmission and become manifest at the population level. (pnas.org)
  • studies
  • Zhukova, O. 2004-10-07 00:00:00 The data on the genetic studies of Iranian-speaking populations from Azerbaijan (Talyshs and Tats) are presented. (deepdyve.com)
  • Studies of such correlations usually consider allele frequencies and linguistic groupings (dialects, languages, linguistic families or phyla), sometimes controlling for geographic, topographic, or ecological factors. (pnas.org)
  • A Computer Technology of Gene Geographic Studies of the Gene Pool: IV. (deepdyve.com)
  • locus
  • Since comprehensive genotyping of a population is seldom possible, we investigate the consequences of sampling strategies on the reliability of the gene frequency estimate for a bi-allelic locus. (unl.edu)
  • manifest
  • And in the case of heterozygous advantage (when the Aa fitness coefficient is 100% and the others are less), a stable limiting value for the frequency of A will manifest itself (Snapshot 3). (wolfram.com)
  • Journal
  • They report in the October 1 issue of the journal Genes & Development that this new system of controlling gene networks, analogous to a new computer operating system , paved the way for new animal body plans, just as different operating systems allow the development of new kinds of computer apps. (phys.org)
  • found
  • T (p.Glu172Asp) SNPs were found with variant allele frequencies of 12.9% (95% confidence interval: 11.0-15.0) and 7.2% (5.8-8.8). (nih.gov)
  • Therefore we investigated whether the association of the e4 allele with Alzheimer's disease could be found also in a randomly selected elderly population living in eastern Finland. (bmj.com)
  • tend
  • Differential reproduction the fittest individuals tend to reproduce more often, passing on their genes to the next generation. (docplayer.net)
  • The population will tend to have more individuals with the favorable trait. (docplayer.net)
  • emergence
  • In our current model, there was originally only a single TBP-based operating system, and then the emergence of the new TRF2-based operating system led to new gene networks ('apps') that facilitated the emergence of bilateria," said Kadonaga. (phys.org)