PPT-Chapter 23: Population Genetics (Microevolution)

Microevolution is a change in allele frequencies or genotype frequencies in a population over time Genetic equilibrium in populations the HardyWeinberg theorem Microevolution is deviation from HardyWeinberg equilibrium. Beaumont 1 Wenyang Zhang and David J Balding School of Animal and Microbial Sciences The University of Reading Whiteknights Reading RG6 6AJ United Kingdom Institute of Mathematics and Statistics University of Kent Canterbury Kent CT2 7NF United King and . admixture . among . human populations . Katarzyna. Bryc. OEB 275br. February 19, 2013. Outline. The field of population genetics. Learning about human history from genetics. Out of Africa settlement of continents. Changing Allele Frequencies. Evolution. Evolution is defined as a change in the inherited characteristics of biological . populations. over successive generations. . Microevolution involves the change in allele frequencies that occur over time . -----. Module . 11 . – . Association Genetics. Nicholas Wheeler & David Harry – Oregon State University. What is association genetics?. Association genetics is the process of identifying alleles that are disproportionately represented among individuals with different phenotypes. It is a population-based survey used to identify relationships between genetic markers and phenotypic traits. Objectives. Identify. traits that vary in populations and that may be studied.. Explain. the importance of the bell curve to population genetics.. Compare . three causes of genetic variation in a population.. Section 1 Vocabulary Pretest. Population Genetics. Microevolution. Gene Pool. Allele Frequency. Phenotype Frequency. Total genetic information in a population. Portion of gene copies of a given allele. DARWIN’S UNDERSTANDING VS. PRESENT DAY. How are inheritable traits passed?. How do variations appear?. Today’s understanding of genes, DNA, variation, and mutations is central to our understanding of how evolution works . Gene. Allele. Population. Gene . pool. Population Genetics. Starter - write biological definitions for the following key words:. Gene – a section of DNA that codes for a particular . protein/polypeptide. Chapter. 2: . Evolutionary. Computing: the . Origins. Historical perspective. Biological inspiration:. Darwinian evolution theory . (simplified!). Genetics . (simplified!). Motivation for EC . 2. is concerned with the question of whether a particular allele or genotype will become more common or less common over time in a population, and Why.. Example: . Given that the CCR5-. D. 32 allele confers immunity to HIV, will it become more frequent in the human population over time?. The Scale of . Evolution. Microevolution. Microevolution . occurs over a relatively short period of time within a population or species. The Grants observed this level of evolution in Darwin’s finches which will be discussed later in this lesson.. Institute of Zoology, . Chinese Academy of Sciences, Beijing, China. Oct 2018. University of Science and Technology of China. 2017.6-2018.6. 2013.9-2018.6. A short self-introduction. USTC, School of Life Science, BS. Evolution of one ancestral species to new distinct species. Happens over a long period of time (evidence relies on fossils). Relies on Microevolution. Changes in the gene pool of one species that gives rise to variation in one species. 4. Population and Evolutionary Genetics. lachance.joseph@gmail.com. https://. popgen.gatech.edu. /. COMT. (. catechol-O-methyltransferase. ) and test-taking anxiety. What is wrong with this claim?. Case Study #1.