1 / 7

Natural, Sexual and Artificial Selection

Natural, Sexual and Artificial Selection. Directional, Disruptive and Stabilizing Selection. Directional Selection. An extreme phenotype is favored A trait that was once rare becomes more common. Stabilizing Selection. An intermediate phenotype is favored There is less genetic variation

uyen
Download Presentation

Natural, Sexual and Artificial Selection

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Natural, Sexual and Artificial Selection

  2. Directional, Disruptive and Stabilizing Selection

  3. Directional Selection • An extreme phenotype is favored • A trait that was once rare becomes more common

  4. Stabilizing Selection • An intermediate phenotype is favored • There is less genetic variation • Extreme phenotypes may be lost

  5. Disruptive Selection • Both extreme phenotypes are favored • Intermediate forms are selected against • This can lead to formation of new species

More Related