Artificial and Sexual Selection - PowerPoint PPT Presentation

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Artificial and Sexual Selection

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... (difference in characteristics of males and females) Males often are larger, showier (like peacocks) Females choose the traits they like most in a mate, ... – PowerPoint PPT presentation

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Title: Artificial and Sexual Selection


1
Artificial and Sexual Selection
  • Impact Evolution Too!

2
Artificial Selection
  • Humans impact the course of evolution by choosing
    traits they desire most in organisms
  • Example Domestic Pets
  • All domestic dogs are descendants of the Gray
    Wolf
  • Example Vegetables
  • - Cauliflower, broccoli, and Brussel sprouts
  • descended from the wild mustard plant

3
(No Transcript)
4
Sexual Selection
  • A separate selection process that leads to sexual
    dimorphism (difference in characteristics of
    males and females)
  • Males often are larger, showier (like peacocks)
  • Females choose the traits they like most in a
    mate, causing those genes to be passed on when
    mating occurs

5
Golden Orb Weaver
Male peacock and female peahen
Diamondback Terrapin Turtle
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