selection definition
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Definition of 'selection' Selection is the act of selecting one or more people or things from a group. ...Darwin's principles of natural selection. Dr. Sullivan's selection to head the Department of Health was greeted with satisfaction. The children have to sit a tough selection test.
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Definition of 'selection' Selection definition: Selection is the act of selecting one or more people or things from a group. | Meaning, pronunciation, translations and examples
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- SELECTION: –. MEANING OF SELECTION: Selection is the process of picking up individuals (out of the pool of job applicants) with requisite qualifications and competence to fill jobs in the organization. A formal definition of Selection is as under. Definition of Selection: Process of differentiating.
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Natural Selection Natural selection is the differential survival and reproduction of individuals due to differences in phenotype; it is a key mechanism of evolution.
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- In a changing environment, natural selection will favor variations Variation: The differences among individuals in a population. that result in a better fitness in the new environment, resulting in adaptation and evolution. Directional selection Directional selection Directional Selection: A type of selection that removes individuals from one end of a phenotypic distribution and thus causes a shift in the distribution. occurs when natural selection favors one extreme of continuous variation. Over time, the favored extreme will become more common and the other extreme will be less common or lost.
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- An adaptation is a feature produced by natural selection for its current function. Based on this definition we can make specific predictions (If X is an adaptation for a particular function, then we'd predict that...) and see if our predictions match our observations. As an example, we'll consider the hypothesis: feathers are an adaptation for bird flight.
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Definition of Recruitment & Selection Definition of Recruitment & Selection by Pallab Dutta; Updated September 26, 2017 Recruitment and selection refers to the chain and sequence of activities pertaining to recruitment and selection of employable candidates and job seekers for an organization. Every enterprise, business, start-up and entrepreneurial firm has some well-defined employment and recruitment policies and hiring procedures. ...
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Definition of 'Settlement Option' Tweet. Adverse selection is a phenomenon wherein the insurer is confronted with the probability of loss due to risk not factored in at the time of sale.
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Evolution Evolution by means of natural selection is the process by which traits that enhance survival and reproduction become more common in successive generations of a population. It has often been called a self-evident mechanism because it necessarily follows from three simple facts:
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Natural Selection / Key Terms Survival of The Fittest - Definition. Descent with Modification - Definition. Change in the genetic composition of a population during successive generations, as a result of natural selection acting on the genetic variation among individuals, and resulting in the development of new species.
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Natural selection The term natural selection is most often defined to operate on heritable traits, because these directly participate in evolution. However, natural selection is blind in the sense that changes in phenotype can give a reproductive advantage regardless of whether or not the trait is heritable.
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What is 'Adverse Selection' DEFINITION of 'Adverse Selection'. 1. The tendency of those in dangerous jobs or high risk lifestyles to get life insurance. 2. A situation where sellers have information that buyers don't (or vice versa) about some aspect of product quality.
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- Definition of selective. 1  1 : of, relating to, or characterized by selection : selecting or tending to select. 2  2 : highly specific in activity or effect selective pesticides selective absorption.
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Examples of natural selection - How does natural selection work ? Examples Of Natural Selection. Natural selection can be defined as a process where the organism that is able to survive will pass on the beneficial traits to its offsprings because these traits are the best suited for the environment. When the offsprings are able to survive successfully, they increase in numbers.
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kin selection Medical Definition of kin selection. : a theory of natural selection which states that a usually altruistic behavior or attribute that lowers the fitness of a particular individual is selected for if it increases the probability of survival and reproduction of related kin who possess some or all of the same genes as the altruistic individual.
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natural selection natural selection definition. A process fundamental to evolution as described by Charles Darwin. By natural selection, any characteristic of an individual that allows it to survive to produce more offspring will eventually appear in every individual of the species, simply because those members will have more offspring.
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Natural selection Natural selection can be contrasted with artificial selection, in which humans intentionally choose specific traits (although they may not always get what they want). In natural selection there is no intentional choice. In other words, artificial selection is teleological and natural selection is not teleological.
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- Save. choose /ˈtʃuːz/ verb. chooses; chose /ˈtʃoʊz/ ; chosen /ˈtʃoʊzn̩/ ; choosing. choose. /ˈtʃuːz/. verb. chooses; chose /ˈtʃoʊz/ ; chosen /ˈtʃoʊzn̩/ ; choosing. Learner's definition of CHOOSE. 1. : to decide that a particular person or thing is the one that you want.
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Selection bias Selection bias. Selection bias is the bias introduced by the selection of individuals, groups or data for analysis in such a way that proper randomization is not achieved, thereby ensuring that the sample obtained is not representative of the population intended to be analyzed. It is sometimes referred to as the selection effect. The phrase selection bias most often refers to the distortion of a statistical analysis, resulting from the method of collecting samples. If the selection bias is not taken into acco
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Difference Between Natural Selection and Adaptation An adaptation is defined as an evolution process which enhances the fitness of a particular organism, relative to alternative character states. As Darwin had explained, Natural selection is the known cause of adaptations.
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Adverse selection Adverse selection. Adverse selection is a concept in economics, insurance, and risk management, which describes a situation where market participation is affected by asymmetric information. When buyers and sellers have different information, it is known as a state of asymmetric information.
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- In other words, natural selection is an important process (though not the only process) by which evolution takes place within a population of organisms.
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Population Genetics of Plant Pathogens Natural Selection in Plant Pathosystems Selection is the process that increases the frequencies of plant resistance alleles in natural ecosystems through coevolution, and it is the process that increases the frequencies of virulence alleles in agricultural ecosystems during boom and bust cycles. Selection occurs in response to a specific environmental factor.
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Directional selection In population genetics, directional selection is a mode of natural selection in which an extreme phenotype is favored over other phenotypes, causing the allele frequency to shift over time in the direction of that phenotype.
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- Evolution is the change in heritable traits within populations over time. Often the definition is more focused to mean changing allele frequency within a population over time. Selection (including sexual, kin, etc) is one way that allele frequencies can change and it is the only mechanism that produces adaptation.
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selection the superiority of the individuals selected for breeding, relative to the population from which they were selected. selection limit. the situation in which the entire population is homozygous for the same set of favorable genes; called also selection plateau.