Disruptive innovation
Natural Selection on Polygenic Traits. Effects of natural selection on polygenic traits are very complex Can affect the distributions of phenotypes in.
Population Evolution Biology Chapter 16 1. Genetic Variation Populations always show variation in traits – no two individuals are EXACTLY the same Variations.
Biodiversity and Evolution Chapter 4. Core Case Study: Why Should We Care about the American Alligator? Largest reptile in North America 1930s: Hunters.
15.3 NOTES. Genetic Drift A random change in the frequency of an allele in a population NOT due to natural selection. More likely to occur in small populations.
KEY CONCEPT A population shares a common gene pool.
Genetic Variation - The fuel of natural selection Campbell et al, chapter 23.
Chapter 15 Evolution. Think About It? What is evolution? What is evolution? Why does it happen? Why does it happen? How does it happen? How does it happen?
Evolution as Genetic Change. 16.2 Evolution as Genetic Change Natural selection can affect phenotypes in a population in 3 ways A.Directional Selection.
17.2 Evolution as Genetic Change in Populations Pages 487 - 497.
Evolution by Natural Selection. Scientific Theory An explanation of natural phenomenon supported by a large body of scientific evidence obtained from.
Biology - Chp 16 - Evolution Of Populations - Powerpoint