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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 …

  4. 19.3B: Stabilizing, Directional, and Diversifying Selection

    When the environment changes, populations will often undergo directional selection, which selects for phenotypes at one end of the spectrum of existing variation. A classic example of this type of …

  5. 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.

  6. Directional Selection - Evolutionary Biology - Oxford Bibliographies

    Jan 13, 2014 · Directional selection occurs when individuals with traits on one side of the mean in their population survive better or reproduce more than those on the other. It has been demonstrated many …

  7. 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 …

  8. 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...

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

    Jan 5, 2025 · Directional selection is a type of natural selection that involves the evolution of a population towards a specific trait or characteristic. It is a process by which a particular characteristic …

  10. 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 …