Types of selection

Normal distribution:

  • Advantageous trait in the middle with higher percentage of population and the other traits on the outside with the less percentage of population due to natural selection

Stabilizing selection

  • Natural selection that causes a decrease in extremes, kills off the undesirable (extreme) trait

Directional Selection

  • The extreme variant does better than the other, causing killing off of the other extreme

Disruptive selection

Disruptive Selection - AP Evolution Review
  • extreme traits do better than middle ground trait

  • cause decrease in middle trait with increase in the two extremes cause the double hill effect