• However, the extent to which standing genetic variation in thermal tolerance alleles influence dynamic stress responses vs. preparatory processes is unknown. (frontiersin.org)
  • To test our hypotheses, we measured the critical thermal minimum (CT min ) and critical thermal maximum (CT max ) of 100 lines of the Drosophila Genetic Reference Panel (DGRP) and used GWAS to identify loci that explain variation in thermal limits. (frontiersin.org)
  • Genetic variation in thermal tolerance is well-documented (e.g. (frontiersin.org)
  • We also kind of get information about genetic variation in that sequence for free. (thenakedscientists.com)
  • Jenny - Some of those genes are involved in immune defence, again, suggesting that when you're job is to cope with exposure to pathogens, being able to have a lot of variation and being able to evolve very rapidly might be important. (thenakedscientists.com)
  • The study of the factors structuring genetic variation can help to infer the neutral and adaptive processes shaping the demographic and evolutionary trajectories of natural populations. (datadryad.org)
  • Here, we analyse the role of isolation-by distance (IBD), isolation-by-resistance (IBR, defined by landscape composition), and isolation by environment (IBE, estimated as habitat and elevation dissimilarity) in structuring genetic variation of 25 blue tit (Cyanistes caeruleus) populations. (datadryad.org)
  • Geographic Survey of Genetic Variation in Kava (Piper methysticum Forst. (hawaii.edu)
  • But once such mutations are introduced back into a larger population, such as modern humans, they would be exposed to the surveillance of natural selection and eventually lost. (newswise.com)
  • The results suggest that Neanderthals carried many mutations with mild, but harmful effects. (newswise.com)
  • Many vulnerable populations in fragmented habitats face similar genetic problems to the Neanderthals: inbreeding, low genetic diversity, and accumulation of harmful mutations. (newswise.com)
  • Average child has 60 genetic mutations? (uncommondescent.com)
  • So are you going to tackle my posts regarding the distribution of mutations along the selection coefficient axis? (uncommondescent.com)
  • For mutations to provide the raw materials on which natural selection can operate, two things need to happen. (exploreevolution.com)
  • 100) EE clearly states (as it should) that mutations are a vital component of the process of antibiotic resistance, for they provide the "raw materials" upon which selection can act. (exploreevolution.com)
  • Most of the morphotypes and chemotypes apparently originated through human selection and preservation of somatic mutations in a small number of original clones. (hawaii.edu)
  • A huge genetic study that sought to pinpoint how the human genome is evolving suggests that natural selection is getting rid of harmful genetic mutations that shorten. (acm.org)
  • We investigated the genetic architecture underlying differentiation in fitness-related traits between two pairs of populations of the seed beetle Callosobruchus maculatus (Coleoptera: Bruchidae). (bioone.org)
  • Population genetic differentiation was mostly detected using the panel of NTL. (datadryad.org)
  • Landscape genetic analyses showed a pattern of IBD for all loci and the panel of NTL, but genetic differentiation estimated at TL was only explained by IBR models considering high resistance for natural vegetation and low resistance for agricultural lands. (datadryad.org)
  • The investigation in this area has been centered in hormonal aspects, cerebral differentiation and genetic, throwing incoherent results. (bvsalud.org)
  • Stem and progenitor cell populations are often heterogeneous, which may reflect stem cell subsets that express subtly different properties, including different propensities for lineage selection upon differentiation, yet remain able to interconvert. (lu.se)
  • Evidence the fate of stem cells has broad ramifications for biomedical suggests that during development or differentiation, cells make science from elucidating the causes of cancer to the use of very precise transitions between apparently stable ``network stem cells in regenerative medicine. (lu.se)
  • We were most surprised by the fact that the genetic factors were not stable over time, so the influence of genes depends on the developmental stage of the child. (neurosciencenews.com)
  • The results suggest that genes controlling the sleep-wake system play a role in childhood insomnia. (neurosciencenews.com)
  • According to the authors, the results suggest that genes controlling the sleep-wake system play a role in childhood insomnia. (neurosciencenews.com)
  • Further, several GWAS candidates were regulatory genes that may participate in the regulation of stress responses, and gene ontologies related to development and morphogenesis were enriched, suggesting many of these genes influence thermal tolerance through effects on development and physiological status. (frontiersin.org)
  • Those genes in baboons were also likely to be related to genetic differences among individuals in humans. (thenakedscientists.com)
  • So, genetic effects on gene expression levels in baboons are, to some degree, similar to the sets of genes that show the same pattern in humans. (thenakedscientists.com)
  • And that was interesting and surprising because it suggests that some genes are kind of more free to vary than others. (thenakedscientists.com)
  • Natural selection makes some genes very constant in the way that they are expressed, whereas other genes are allowed to vary in populations more freely. (thenakedscientists.com)
  • It is known that there are genes controlling growth at different ages, so it was suggested that this area had potential for future research, with the challenge being to produce a broiler breeder which needed no feed restriction but was still capable of producing competitive offspring. (thepoultrysite.com)
  • Conclusions: Although hybridization, allopolyploidization, and human selection during cultivation can increase species richness (e.g., by forming hybrid taxa), we showed that unless reproductive barriers are strong, these processes can also result in mixing of genes between species and the potential loss of natural biodiversity. (lu.se)
  • The mode of inheritance in males involves simpler genetic architecture that does not include as many interactions between genes as could be involved in female inheritance. (nbcnews.com)
  • Having one X means your genes are more open to selection in males," UF researcher Marina Telonis-Scott said in a telephone interview. (nbcnews.com)
  • Genes involved in immune defense against pathogens provide some of the most well-known examples of both directional and balancing selection. (ku.edu)
  • In agreement with this, natural selection would have to favor heterosexualidad since this facilitates the reproduction and genes propagation. (bvsalud.org)
  • The results suggest that these harmful gene variants continue to reduce the fitness of some populations today. (newswise.com)
  • But though a small fraction of the genome of non-African populations today is Neanderthal, their genetic contribution is uneven. (newswise.com)
  • In small populations, like the Neanderthals', natural selection is less effective and chance has an outsized influence. (newswise.com)
  • Crnobrnja-Isailovic J., Dzukic G., Aleksic I, Vujicic L., Avramov S., Podarcis muralis and Lacerta oxycephala (Reptilia: Lacertidae) on the islands of Skadar Lake: Distribution and genetic relationships of populations, in: Llorente G., Montori A., Santos X., Carretero M.A. (Eds. (gse-journal.org)
  • For example, there is evidence that genetic resistance to certain diseases such as malaria exists in vulnerable populations. (jstor.org)
  • In populations like the Buriat people of Siberia, whose broad faces might be an adaptation to cold climates, measurable physical changes seem to have been driven by selection. (jstor.org)
  • The results suggest that these populations have not converged to the same life-history phenotype and genetic architecture, despite 120 generations of uniform natural selection. (bioone.org)
  • Our data suggests that targeting the genetic viability of rat populations may be another important component for integrated pest management (IPM) strategies, designed to reduce urban rats. (frontiersin.org)
  • The reference population developed tolerance beyond expectations primarily due to slowly developing plastic response in one strain, suggesting that different modes of copper tolerance are present in the two populations. (lu.se)
  • Our findings provide novel empirical evidence that standing genetic diversity of phytoplankton resting stage allows populations to evolve rapidly (20-50 generations) and flexibly on timescales relevant for seasonal bloom progressions. (lu.se)
  • This selection in the natural environment genetically changes (domesticates) the population because at least some of the performance traits are heritable. (usgs.gov)
  • However, little is known on the genetic traits associated with the evolution of these obligate soaring scavengers. (nature.com)
  • The study was designed with a total of 82 germplasm and a national check in RCBD for genetic variability for 11 agronomic traits. (academicjournals.org)
  • Records of growth traits of 2,086 Romanov lambs were used to estimate variance components for an animal model and genetic correlations between growth traits. (unl.edu)
  • The estimates of genetic correlations showed no genetic antagonisms among the traits. (unl.edu)
  • These contrasting evolutionary trajectories might be driven by differential selection, functional constraints or temporal patterns of metabolic investment between the different types of sexual traits. (uzh.ch)
  • Phytoplankton have short generation times, flexible reproduction strategies, large population sizes and high standing genetic diversity, traits that should facilitate rapid evolution under directional selection. (lu.se)
  • Molecular typing showed extensive genetic diversity with only limited clonality among isolates. (cdc.gov)
  • Here, we use both a linear model and control-gene-based approach to show that balancing selection is an important force shaping AMP diversity in Drosophila. (ku.edu)
  • This suggests that balancing selection may be broadly acting to maintain adaptive diversity in Drosophila AMPs, as has been found in other taxa. (ku.edu)
  • Quantifying the relationship between genetic diversity and population size suggests natural selection cannot explain Lewontin's Paradox. (bvsalud.org)
  • As expected, the hyper-tolerant strains enabled rapid evolution of copper tolerance in the mining-exposed population through selection on available strain diversity. (lu.se)
  • The UT Austin team tested different genetic variants of the virus's spike protein , the part that allows it to infect host cells, to measure the protein's stability and to see how well it binds to a receptor on host cells and to neutralize antibodies. (scitechdaily.com)
  • To quantify this effect, Harris and Nielsen used computer programs to simulate mutation accumulation during Neanderthal evolution and to estimate how humans were affected by the influx of neanderthal genetic variants. (newswise.com)
  • Still, despite gene flow between species, we found that genetic variants associated with the cultivated trichome morphology continue to segregate. (lu.se)
  • The resultant increase in transmission of the virus has brought about genetic expansion of viruses, providing ample opportunities for successful selections of viral variants of high epidemic potential or virulence as suggested by molecular epidemiological studies on Cuba and Puerto Rico. (who.int)
  • After doing a morphological study of the three types of plants, they performed modern population genetic analysis, using a sophisticated analytical tool developed in the last five years to determine the radishes' genetic makeup. (sciencedaily.com)
  • But it turned out that it was actually much easier to identify these kinds of genetic effects on gene expression levels in the baboons than it has been in humans so far, suggesting that baboons might in fact be more genetically variable than your average human population. (thenakedscientists.com)
  • 1.1: A software for population genetic data analysis, Genetics and Biometry Laboratory, University of Geneva, 1997. (gse-journal.org)
  • While the primary goal of these interventions is to reduce rat numbers and their detrimental activities, there are important, yet unexplored, population genetic implications for these rapid population declines. (frontiersin.org)
  • We found evidence of severe genetic bottlenecks, with the effective population size dropping 85-91% after eradication, consistent with declines in population sizes. (frontiersin.org)
  • Relatedness increased in two of the three study areas after eradication, suggesting reduced population sizes and an uneven impact of the campaign across colonies within the population. (frontiersin.org)
  • Lastly, dozens of low-frequency alleles (mean frequency of 0.037) observed before the campaign were undetected after the campaign, potentially lost from the population via drift or selection. (frontiersin.org)
  • Our data confirm earlier microsatellite-based findings that these species are genetically differentiated, but our population genomics approach reveals that hybridization and genetic introgression have recently occurred between the two species. (broadinstitute.org)
  • Population genetic studies dating back to the mid-20th century first proposed that erythrocytes (red blood cells), the host cell for P. falciparum, have been under natural selection due to malaria. (stanford.edu)
  • The UK Biobank participants do not represent the entire population of the country, with a healthy volunteer selection bias previously reported. (medscape.com)
  • As for other indigenous livestock owned by smallholder crop-livestock farmers, natural environmental conditions represent major selection pressures. (nature.com)
  • Intense natural selection after release from the hatchery favored fish that had performed well (e.g. grew fast) in the hatchery. (usgs.gov)
  • Thus, mtDNA may be an important target of natural selection, especially in high altitude birds exposed to cold temperatures and low oxygen pressure. (nature.com)
  • Natural selection would favor strains of the virus that transmit more easily. (scitechdaily.com)
  • Harris and her colleague Rasmus Nielsen (University of California, Berkeley / University of Copenhagen) hypothesized that the force in question was natural selection. (newswise.com)
  • We stand together to strongly condemn conspiracy theories suggesting that COVID-19 does not have a natural origin," a group of virologists and others wrote in the Lancet on February 19, 2020, when it was really far too soon for anyone to be sure what had happened. (thebulletin.org)
  • Does natural selection apply to humans? (jstor.org)
  • The author, Dr. Stephen Meyer of the Discovery Institute in Seattle, questioned the sufficiency of Darwinian natural selection to produce the genetic information necessary to build new forms of life. (jpost.com)
  • If that particular gene gives the male a boost in terms of sexual selection, say a gene responsible for fluffier feathers, the gene would be selected for in the game of natural selection over successive generations. (nbcnews.com)
  • Darwin developed his theory of natural selection based on his observations during his trip on the H.M.S. Beagle and his collection of specimens. (proprofs.com)
  • However, Gregor Mendel's work on genetics and heredity was not known to Darwin during his lifetime and therefore could not have influenced his concept of natural selection. (proprofs.com)
  • Fossils also provided evidence of transitional forms, further supporting Darwin's theory of natural selection. (proprofs.com)
  • Engineers have used a supercomputing technique that mimics natural selection to design the internal structure of an aircraft wing from scratch. (acm.org)
  • We find more coding sequence than expected by chance in the introgressed regions, suggesting that natural selection may play a role in the observed genetic exchange. (broadinstitute.org)
  • Genetic correlations were estimated for a model with the same fixed effects and only additive genetic effects. (unl.edu)
  • An additive genetic mixed linear model was fitted to the data to evaluate the impact of inbreeding on height growth. (sisef.it)
  • The importance and type of non-additive genetic effects for growth in Eucalyptus globulus . (sisef.it)
  • Contamination rates were on average 10% suggesting long distance pollen dispersal was present. (sisef.it)
  • Variance components were estimated using restricted maximum likelihood with an animal model including fixed effects for year x season, sex, rearing type, and litter size and random effects for the direct genetic effect of the animal (with relative variance h 2 ), the maternal genetic effect (with relative variance m 2 ) , the permanent environmental effect (with relative variance c 2 ), and random residual effect. (unl.edu)
  • Tests for serum alpha-1 antitrypsin deficiency, glucose-6-phosphate-dehydrogenase deficiency, cadmium -disulfide genetic predisposition, isocyanate allergic reaction, and sickle cell trait hemoglobinopathies are discussed. (cdc.gov)
  • Individuals can vary because the genetic sequences they carry will be different. (thenakedscientists.com)
  • Genetic sequences of the bases are read in groups of three (called a triplet), with a possibility of 64 configurations or "words" in which to code information. (cdc.gov)
  • UC Riverside scientists studying the genetic makeup of wild radishes in California have determined that the California wild radish is descended from hybrids between two species: cultivated radish and the weed, jointed charlock. (sciencedaily.com)
  • Using different codon-based and branch-site selection models for aphthoviruses including BRAV RS3X, we observed no clear evidence for genomic regions undergoing positive selection, however, within each of the BRV species multiple sites under positive selection were detected. (usda.gov)
  • There were signs of genetic admixture between mints, including allopolyploids, indicating that the reproductive barriers between Mentha species with differences in ploidy are likely incomplete. (lu.se)
  • Our results support that different selection pressures (e.g. environmental constraints, human selection, genome admixture constrains) have shaped the genome of EASZ. (nature.com)
  • In addition, evidence suggests that clinical FQ-resistant E. coli isolates from humans in Iowa were associated with a shift toward non-B2 phylogenetic groups and to a lower overall virulence genotype ( 4 ). (cdc.gov)
  • Evidence suggests that the crop was also grown in China and India, at least 5,000 years ago (Cullis, 2007). (academicjournals.org)
  • Genetic and other evidence suggests that the spleens may be a result of selection. (jstor.org)
  • Identification of a diverse range of bat paramyxoviruses, including those conspecific with human mumps virus, and phylogenetic reconstruction of host associations suggests numerous host switches of paramyxoviruses from bats to other mammals and birds. (cdc.gov)
  • Therefore, molecular genetic studies are needed to identify this genetic mechanism, which could facilitate the development of targeted treatments. (neurosciencenews.com)
  • The paper shows "the virus is mutating due to a combination of neutral drift - which just means random genetic changes that don't help or hurt the virus - and pressure from our immune systems," said Ilya Finkelstein, associate professor of molecular biosciences at The University of Texas at Austin and co-author of the study. (scitechdaily.com)
  • Mitochondrial DNA plays a vital role in regulating oxidative stress and energy production, and hence may be an important target of selection for flight performance. (nature.com)
  • The genetic base of this crop is much narrower than previous morphological and biochemical studies suggest. (hawaii.edu)
  • Here, we assess the presence of candidate signatures of positive selection in their genome, with the aim to provide qualitative insights about the corresponding selective pressures. (nature.com)
  • New research on fruit flies, detailed online last week in the journal Proceedings of the National Academy of Sciences, finds males have fewer genetic obstacles to prevent them from responding quickly to selection pressures in their environments. (nbcnews.com)
  • The researchers suggest this uncomplicated (compared with females) genetic pathway allows males to respond at the drop of a hat to the pressures of sexual selection. (nbcnews.com)
  • Finally, the absence for IBE suggests a lack of divergent selection pressures associated with differences in habitat and elevation. (datadryad.org)
  • Family health history is an important risk factor that reflects inherited genetic susceptibility, shared environment, and common behaviors. (cdc.gov)
  • Analyses were stratified by susceptibility to ASCVD based on family history, genetic risk, and established risk factors. (medscape.com)
  • Recent nuclear genomic analyses showed that Falconiformes excluded the Turkey vulture ( Cathartes aura ), and suggested that Cathartidae split from a common ancestor of their sister group Accipitridae at some point between the late Cretaceous and early Paleogene or even later 10 , 11 . (nature.com)
  • Further analysis found that genetic influences around age 8 contributed to insomnia at all subsequent stages of development, and that new genetic influences came into play around the age of 10 years. (neurosciencenews.com)
  • A new study by experts from the University of Exeter has found that genetic improvement is underlying the increasing speed of Britain's Thoroughbreds. (paulickreport.com)
  • The study found that genetic improvement accounts for 60 percent, 55 percent and 17 percent of the total increase in speed observed over short, middle and long distances respectively. (paulickreport.com)
  • found that flight evolved in tandem with concomitant genetic changes to their innate immune systems. (cdc.gov)
  • Such epistasis creates non-heritable noise and strongly interferes with selection. (uncommondescent.com)
  • Evidence from nuclear DNA evolution presented here contradicts the two major hypotheses of pinniped relationships and strongly suggests a single origin of the pinnipeds from an arctoid ancestor shared with Musteloidea to the exclusion of Ursidae. (bioone.org)
  • Here effort was made to assess the genetic variability in linseed germplasm and identify some promising lines used as parents in the linseed hybridization program. (academicjournals.org)
  • reviewed antiviral immune responses in bats and suggested the possibility that bats might be able to control viral replication through innate immunity. (cdc.gov)
  • A new study of twins suggests that insomnia in childhood and adolescence is partially explained by genetic factors. (neurosciencenews.com)
  • Genetic factors contributed to 33 to 38 percent of the insomnia ratings at the first two stages of the study, when participants had an average age of 8 to 10 years. (neurosciencenews.com)
  • Insomnia in youth is moderately related to genetic factors, but the specific genetic factors may change with age," said study author Philip Gehrman, PhD, assistant professor in the Department of Psychology at the University of Pennsylvania in Philadelphia. (neurosciencenews.com)
  • In the current study, we have extended our analysis to include a field isolate of BRV of type 1, including determining a nearly full-length genetic sequence of the virus. (usda.gov)
  • This study suggests that internists often feel they have insufficient knowledge about it and may refer for PGD based on limited understanding. (columbia.edu)
  • However, the new study has also revealed that rates of genetic progress are relatively low, particularly over long-distance races. (paulickreport.com)
  • Although the notion that malaria has helped shape the human genome is well- accepted, the lack of a nucleus in human erythrocytes has hindered our ability to study genetic interactions between these unusual host cells and P. falciparum parasites. (stanford.edu)
  • October 31, 2022 -- A genetic timestamping mouse model has shown the rate at which antibody-producing cells accumulate and disappear after vaccination, which could ultimately allow researchers to be able to increase the longevity of immunity from vaccines. (scienceboard.net)
  • Researchers find that males can respond quicker than females to sexual selection, resulting in glitzier garbs like the male peacock's tail feather, which outshows any drab peahen. (nbcnews.com)
  • The researchers suggest the low rates of genetic improvement also raises the possibility that selection of racehorses for breeding may be weaker than previously assumed, particularly over long distances, or some other constraint may be at play. (paulickreport.com)
  • An ectotherm's thermal tolerance is determined by both fixed genetic factors and plastic changes in behavior, morphology, physiology, and gene expression. (frontiersin.org)
  • Jenny - One thing it told us is that genetic differences between individual baboons play a really important role in determining, whether, gene expression levels tend to be high or low. (thenakedscientists.com)
  • Genetic theory and data suggest that sea ranching of anadromous salmonids (Oncorhynchus spp. (usgs.gov)
  • The data reported here provides genetic information to assist on the identification of diagnostic signatures and research tools for BRAV. (usda.gov)
  • Despite these limitations, the present data suggest that DM alone does not appear to modify any association between 17q12 risk alleles with prostate cancer features. (nih.gov)
  • Therefore, WHO now reviews the available antigenic and genetic data on animal and human H5N1 viruses in addition to the analyses of seasonal vaccine stains and has developed and made H5N1 candidate vaccine viruses available to vaccine producers so they can work on developing safe and effective human H5N1 vaccines for potential productioni. (who.int)
  • Climbing more than five flights of stairs daily is associated with a reduced risk of atherosclerotic cardiovascular disease (ASCVD) of about 20%, new observational data suggest. (medscape.com)
  • We tested for genetic differences in growth, survival, and downstream migration of hatchery and wild steelhead (O. mykiss) reared together in a hatchery. (usgs.gov)
  • You can also get a sense of how genetically different individuals are, and it's connecting those two things that we did in this paper to ask about whether genetic differences between individuals play a role in how many eggs go in that cake. (thenakedscientists.com)
  • In this paper, an improved genetic algorithm for building selection is designed to be able to incorporate cartographic constraints related to the building selection problem. (mdpi.com)
  • Part of the local constraints for building selection is used to constrain the encoding and genetic operation. (mdpi.com)
  • To satisfy other local constraints, a preparation phase is necessary before building selection, which includes building enlargement, local displacement, conflict detection, and attribute enrichment. (mdpi.com)
  • Next in their research the scientists will look for a genetic explanation for how the hybrid acquired its invasive behavior. (sciencedaily.com)
  • Some have suggested another explanation, called "founder's effects. (scitechdaily.com)
  • This fact is ignored by most geneticists because selection scenarios become hopelessly complex and unworkable unless such interactions are conveniently set aside. (uncommondescent.com)
  • Overall, our results suggest that the extreme specialization of vultures for efficient soaring flight has compensated the evolution of large body sizes mitigating the selection pressure on mtDNA. (nature.com)
  • Assuming the results hold up, what would they suggest about human evolution? (uncommondescent.com)
  • Biologists suggest that evolution never stops, even for modern humans. (jstor.org)
  • But biologist Michael Balter suggests that evolution never stops , even for modern humans. (jstor.org)
  • Balancing selection also acts on AMPs in Drosophila mauritiana, an isolated island endemic separated from D. melanogaster by about 4 Myr of evolution. (ku.edu)
  • In an artificial evolution experiment, we used a novel intraspecific metabarcoding locus to track selection and quantify fitness of all 58 strains during co-cultivation in one control and one toxic copper treatment. (lu.se)
  • A revision becomes of the different investigation areas on sexual direction and the incapability of the evolutionary theories to give account of this is suggested. (bvsalud.org)
  • Suggested as a hybrid lineage by UC Berkeley scientists in the 1960s, the UCR-led research now reports definitive genetic evidence for its hybrid origin. (sciencedaily.com)
  • It is unclear whether this reflects selection bias, genetic protection from prostate cancer among patients with DM, or both. (nih.gov)
  • Conflicting lines of evidence have suggested that AMPs may be under directional, balancing, or purifying selection. (ku.edu)
  • The physiology of the Bajau people of Indonesia suggests that at least in some cases the answer to this question is yes. (jstor.org)
  • Non-African humans inherited some of this genetic burden when they interbred with Neanderthals, though much of it has been lost. (newswise.com)
  • Harris and Nielsen's simulations also suggest that humans and Neanderthals mixed much more freely than originally thought. (newswise.com)
  • The selection favoring light pigmentation also began after humans began switching to agriculture, and their diet started to contain less vitamin D-rich game and fish. (jstor.org)
  • As a postdoc in Manoj Duraisingh's lab at Harvard School of Public Health she performed a genetic screen to identify critical host factors for Plasmodium falciparum malaria using red blood cells derived from hematopoietic stem cells. (stanford.edu)
  • The central question is when organisms with conflicting interests, such as in sexual selection, should be expected to provide honest signals (no presumption being made of conscious intention) rather than cheating. (wikipedia.org)
  • The mathematical biologist Ronald Fisher analysed the contribution that having two copies of each gene (diploidy) would make to honest signalling, demonstrating that a runaway effect could occur in sexual selection. (wikipedia.org)
  • Called sexual selection, the result is typically a showy male and a plain-Jane female. (nbcnews.com)
  • and the mechanism of the sexual selection in order to explain its reproduction. (bvsalud.org)
  • The nature of the stem cell substates and their relationship to commitment to differ- entiate and lineage selection can be elucidated in terms of a landscape picture in which stable states can be defined mathematically as attractors. (lu.se)
  • Results: The allopolyploid M. spicata, which likely evolved in cultivation, had altered trichome characters, that is possibly a product of human selection for a more palatable plant or a byproduct of selection for essential oils. (lu.se)
  • Jacobs and Bates suggested that creating better training experiences for DNNs and limiting their processing powers to mimic limits in human systems (e.g., attentional mechanisms) will likely improve DNNs' ability to become better models for psychological processes. (psychologicalscience.org)
  • Preimplantation genetic diagnosis (PGD) is increasingly available, but how physicians view it is unclear. (columbia.edu)
  • No incentive was given to the health effects suggest that it leads waterpipe smokers while 40% smoked participants and they were free to par- to cancer, genetic damage, diseases both cigarettes and the waterpipe [19]. (who.int)
  • Our results suggest that inheriting Neanderthal DNA came at a cost. (newswise.com)
  • Overall, our results suggest that thermal tolerance alleles can influence both dynamic plastic responses to thermal stress and preparatory processes that improve thermal resistance. (frontiersin.org)
  • Results suggest that selection should be effective for WW, DG1, and DG2 but less effective for BWT and W90. (unl.edu)
  • Neurologic examination and imaging in the essential idiopathic, typically genetic, epilepsies are usually normal. (medscape.com)