1.Lesson Overview 17.2 Evolution as Genetic Change in Populations2. How Natural Selection Works How does natural selection affect single-gene and polygenic traits? 3. How…

Slide 1 Slide 2 3 Causes of Deviation from Equilibrium  1. Natural Selection ○ Stabilizing selection ○ Disruptive selection ○ Directional selection  2. Genetic…

Slide 1 MICROEVOLUTION INVOLVES THE EVOLUTIONARY CHANGES WITHIN A POPULATION. A population is defined as all the members of a single species occupying a particular area and…

Slide 1 Genes and Variation Presented by: Mr. Godinez What is it? Slide 2 Allele: is an alternative form of a gene. These genes are located at the same position on a chromosome…

Evolution of Populations Chapter 23.3-23.4 Evolution of Populations Chapter 23.3-23.4 AP Biology 23.1-23.2 Recap Two Types of Evolution Macroevolution Evolution that takes…

Chapter 19 Genetic Diversity in Populations Chapter Outcomes: Define a gene pool. Describe the gene pool of a population at genetic equilibrium. Summarize the five conditions…

Genetic Drift Generation 1 CW CW CR CR CR CW CR CR CR CR CR CR CR CR CR CW CR CW CR CW p (frequency of CR) = 0.7 q (frequency of CW ) = 0.3 Generation 2 CR CW CR CW CR CW…

Fossil Record & Homologies Scientists have used the fossil record to construct a history of life on Earth. This is only a theory Fossil record is not complete Homologous…