1. 2007-2008 Evolutionary Forces What changes populations? 2. Evolution is… A change in gene frequency within a population’s gene pool Can occur via Natural Selection…

Slide 1 Evolution! Slide 2 Evolution Natural Selection Early Life on Earth Evidence for Evolution Misc. $100 $200 $400 $500 $300 $100 $200 $400 $500 $300 $100 $200 $400 $500…

AP Biology â Ch. 23 â The Evolution of Populations The smallest unit of evolution? Microevolution 3 main mechanisms responsible for change in allele frequency Which one…

203.341! Genome Evolution! Lectures 21-22! ! Nielsen, 2005 Annual Review of Genetics 39:197-218! Austen Ganley, October 5th, 2015 Genome Evolution •  Different parts…

EVOLUTION During the process of meiosis, independent assortment and crossing over (recombination) can occur. This results in genetic variation in the offspring of sexually…

Forces of evolutionary change Mechanisms for Evolution Natural selection traits that improve survival or reproduction accumulate in the population ADAPTIVE change Genetic…

Slide 1 Chapter 23 The Evolution of Populations Key Concepts 1. Genetic variation makes evolution possible The Hardy-Weinberg equation can be used to test whether a population…