PPT-Genetic Drift, Bottleneck Effect and Founder Effect

Genetic Drift Genetic drift is random fluctuation in allele frequency between generations The effects of genetic drift are pronounced in small populations A Genetic Bottleneck is a Form of Genetic Drift. Zhimin. He. iTechs. – ISCAS. 2013-03-21. Agenda. What’s Concept Drift. Causes of a Concept Drift. Types of Concept Drift. Detecting and Handling Concept Drift. Implications for Software Engineering Research. Manu Awasthi⁺. , . Manjunath. . Shevgoor. ⁺, Kshitij Sudan⁺, Rajeev Balasubramonian⁺, . Bipin. . Rajendran. ‡. , . Viji. . Srinivasan. ‡. ⁺. University of Utah, . ‡. IBM Research. Quick Summary. variation & the Founder Effect. LO: . how bottle necking and the founder effect alter genetic variation.. . All. Most. Some. What is the founder effect and how does it affect genetic diversity?. Zach Daniel White. Biology 101h- . Desaix. Why does it matter?. “An antidepressant that brought relief to only seventy percent [of patients] would be a valuable treatment if it did so in one week and had few side effects. Unfortunately, given the current clinical trial methods and placebo-response rates, such an antidepressant, regardless of its true efficiency, would not have more than a fifty percent chance of looking better than placebo. Trike. Max . Gundrum. Popular ideas. Video of Drift . Trikes. Trike. Video. Drift . Trikes. - Student Documentary Film . Motorized Drift . Trike. Battles . Basic Dimensions. Video on . Trike. design. Genetic Variation . How can genetic diversity be increased?. How can genetic diversity be decreased?. List as many ways as you can think of. Learning Objectives. Understand what is meant by the ‘Founder effect’ and how it results in a loss of genetic diversity. Random change in allele frequencies from 1 generation to . the next.. Individuals who survive . & pass on their genes are not necessarily the “fittest” . Leads to a loss of genetic variation. . Chapter. 12-1. Pan-. gaea. . “. all. - earth. ” . Note: Our world today is actually a 2’nd or 3’rd generation “super continent” or “. pangea. ” !!!. . Alfred Wegener . two-channel. . inhomogeneous exclusion process. . . Introduction. Fig 1: Top - Translation by slow . codon. in protein synthesis (ref. [1]). Bottom – cars moving through a bottleneck on a highway. Warm Up. 1. What is the thickest layer of the Earth? . 2. What is the thinnest layer of the Earth?. 3. What happens to temperature as the depth within the Earth increases? . 4. What happens to the density as the depth within the Earth increases? . weinberg. practice . Changes in allele frequencies. Turn in: Comparing AA WS and video notes. Homework. Chp. 20 reading and notes (Due Tuesday). Natural selection video and notes. Hardy-. weinberg. Evolution & Biodiversity. BIL 160. Fall 2019. N vs N. e. Census Population Size (N) . = # of adult (all) individuals (breeding or non-breeding) within a population. This # can be counted by observation..  . Unit 11. 7F. Let’s remember…. An allele is an alternative form of one gene . B stands for black b stands for brown. The allele would be…. Genetic Drift. An evolutionary mechanism in which allele frequencies change in a population. Wellcome. Trust Advanced Courses; Genomic Epidemiology in Africa. , . 21. st. – 26. th. June 2015. Africa . Centre for Health and Population Studies, University of KwaZulu-Natal, Durban, South Africa.