Finch Beak Handout
Evolution powerpoint!
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.
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 OF POPULATIONS. YOU MUST KNOW… HOW MUTATION AND SEXUAL REPRODUCTION EACH PRODUCE GENETIC VARIATION THE CONDITIONS FOR HARDY- WEINBERG EQUILIBRIUM.
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.
Natural Selection The unequal survival and reproduction of organisms due to environmental forces, resulting in the preservation of favorable adaptations.
Sasha Gimelfarb died on May 11, 2004 A Multilocus Analysis of Frequency-Dependent Selection on a Quantitative Trait Reinhard Bürger Department of Mathematics,