Natural selection and genetic drift
Students’ Mental Models of Evolutionary Causation: Natural Selection and Genetic Drift
... (e.g., genetic drift), we found them to be remarkably uncom- mon in students’ explanatory models of evolutionary change in both written assessments and clinical ...of natural selection in ...
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Testing Natural Selection vs. Genetic Drift in Phenotypic Evolution Using Quantitative Trait Locus Data
... Evolutionary biologists have long sought a way to determine whether a phenotypic difference between two taxa was caused by natural selection or random genetic drift. Here I argue that data ...
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Did RNA editing in plant organellar genomes originate under natural selection or through genetic drift?
... The most difficult part of the RNA editing story to explain is the lineage-specific occurrence of a good number of editing sites, as many of them seem to have evolved rather recently [7, 13, 26, this study]. Colonization ...
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A Diffusion Approximation for Selection and Drift in a Subdivided Population
... structure, natural selection, and genetic ...genic selection can be related to an idealized panmictic population (a Wright-Fisher ...The selection coefficient in the equivalent ...
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Effect of Selection on the Genetic Structure of the Population With the Presence or Absence of Genetic Drift
... that genetic variation can improve the ability of individuals and increase the chance of survival of the population 4, 5 ...as natural selection, genetic drift, migration, distribution, ...
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Why Selection and Drift Might be Distinct
... treat selection and drift as distinct causal ...‘random genetic drift’ to those cases where the organisms or traits involved are selectively neutral and, therefore, natural ...
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Beads and Dice in a Genetic Drift Exercise
... B—Weak Selection In the second simulation, we will add the effect of natural ...ural selection pressure by changing the probabilities of survival of the color variants in a competition ...random ...
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Selection for Chaperone-Like Mediated Genetic Robustness at Low Mutation Rate: Impact of Drift, Epistasis and Complexity
... the selection for genetic robustness does not require high mutation ...through natural selection will tend to select for genetic robustness, even in asexual populations [contrary to ...
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The Role of Natural Selection in Genetic Differentiation of Worldwide Populations of Drosophila ananassae
... to genetic differentiation between populations are generally considered to be natural selection, random genetic drift, and limited ...of natural selection in Drosophila ...
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Global genetic differentiation of complex traits shaped by natural selection in humans
... of natural selection 4,16,19,20 ...whether genetic var- iants associated with a complex trait have been under natural ...that genetic variants associated with human height have been ...
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Effects of Genetic Drift and Gene Flow on the Selective Maintenance of Genetic Variation
... the genetic variation ubiquitous in natural populations are often classified by the population–genetic processes they emphasize: natural selection or mutation and genetic ...under ...
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Cytonuclear Disequilibrium and Genetic Drift in a Natural Population of Ponderosa Pine
... little genetic differentiation among populations of with existing knowledge of the population (Latta et ...neutral genetic drift or cpDNA markers (Dong and Wagner 1994; Latta without the need to ...
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Recent Evolutionary History of Tigers Highlights Contrasting Roles of Genetic Drift and Selection
... of genetic drift, but the observed values are even higher than those expected (supplementary ...of natural selec- tion on genomic diversity in these ...
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Natural Selection and Genetic Diversity in the Butterfly Heliconius melpomene
... of genetic diversity in ...of drift and selection in shaping variation across the genome have focused on the genus Drosophila ...of selection in the neotropical Heliconius butterflies using ...
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Genetic Drift in an Infinite Population: The Pseudohitchhiking Model
... linked selection can produce stochastic dynamics that This simulation confirms the basic premise in Maynard are remarkably like those of genetic ...about genetic variation in natural ...
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Genetic Load in Sexual and Asexual Diploids: Segregation, Dominance and Genetic Drift
... of drift and selection be- tween sexual and asexual diploids subject to recurrent deleterious ...the natural situation, as most populations are subdivided to some extent, and because single small ...
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Genetic Drift in Genetic Algorithm Selection Schemes
... Keywords— Genetic Drift, Selection Operator, Genetic Al- gorithm, Evolution Strategy ...ENETIC drift is a term borrowed from population ge- netics where it is used to explain changes in ...
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Adaptive Fixation in Two-Locus Models of Stabilizing Selection and Genetic Drift
... quantitative genetic models in which selection is assumed to operate on a polygenic trait predict adaptive fixations that may lead to footprints in the genome (selective ...stabilizing selection (with ...
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STUDYING THE EFFECT OF GENETIC SELECTION AND RANDOM DRIFT ON PREVALENCE OF GENETIC DISORDERS AMONG SAUDI POPULATION
... of genetic disorders complicated, as many families and tribal groups are descended from a limited number of ancestors and some conditions are confined to specific villages, families, and tribal groups, leading to ...
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MAINTENANCE OF GENETIC VARIABILITY UNDER THE JOINT EFFECT OF MUTATION, SELECTION AND RANDOM DRIFT
... Formulae are developed f o r the distribution of allele frequencies (the frequency spectrum), the mean number of alleles in a sample, and the mean and variance of het[r] ...
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