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  1. Directional Selection: Definition & Examples | Biology Dictionary

    Oct 4, 2019 · A directional selection is a force in nature that causes a population to evolve towards one end of a trait spectrum. While some traits are discrete and have specific variations (think eye color), …

  2. Directional Selection – Definition, Examples, and Graph

    Dec 19, 2023 · Directional selection occurs when a particular trait becomes more advantageous (having higher fitness) in a changing environment, leading to a consistent shift in the frequency of that trait …

  3. Directional selection - Wikipedia

    In population genetics, directional selection is a mode of natural selection in which individuals with a trait (for example, beak size) at one extreme of a phenotypic distribution have better fitness than …

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  4. Directional Selection Is One of Three Types of Natural Selection

    Apr 30, 2025 · Directional selection is a type of natural selection that favors one extreme phenotype over the mean phenotype or the opposite extreme phenotype.

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  5. Directional Selection | Definition, Graph & Examples - Study.com

    What is meant by directional selection? Directional selection is one of three processes of natural selection whereby the average genotype of a population shifts towards one or another...

  6. What is directional selection in biology? - California Learning ...

    Jan 5, 2025 · Directional selection is a type of selection that favors the spread of a particular trait or characteristic in a population. This occurs when there is a strong selective pressure favoring …

  7. Directional Selection - (AP Biology) - Vocab, Definition, Explanations ...

    Directional selection is a type of natural selection where individuals with traits that are either higher or lower than the average value for the population have a better chance of survival and reproduction.

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  8. What Does Directional Selection Mean in Biology?

    Aug 21, 2025 · Directional selection represents a mode of natural selection where a particular trait, or phenotype, at one extreme of a population’s existing range is favored.

  9. Flexi answers - What is directional selection? | CK-12 Foundation

    Directional selection is a type 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. This …

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  10. Mechanisms of Natural Selection – BSC109 – Biology I

    In Directional Selection, individuals who possess ‘outlying’ traits – or traits that deviate significantly from the norm or average – have higher survivability and are therefore ‘favored’. An example of directional …

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