PPT-16-1 Genetic Equilibrium

Chapter 16 Population Genetics and Speciation Terms to Know Population genetics study of evolution from a genetic point of view Microevolution evolution at the genetic level Bell Curve. Microevolution is a change in allele frequencies or genotype frequencies in a population over time. Genetic equilibrium in populations: the Hardy-Weinberg theorem. Microevolution is deviation from Hardy-Weinberg equilibrium. The rise and fall of biodiversity. Four major mass extinctions of marine organisms:. End of Silurian Devonian, Permian, and Cretaceous). Rise in diversity during Cambrian, Silurian, Cretaceous, and Paleogene. EVOLUTION OF POPULATIONS. Genes and Variation 16–1. Section 16-1. . A _______________ is a . group of individuals of the same species that can interbreed and produce fertile offspring.. POPULATION. .. Evolutionary Forces. Mutation (random). Genetic Drift (random). Gene Flow (random). Sexual Selection (non-random). Genetic Drift. Random, non-selective, changes in allele frequency due to chance. . 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. 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.. Crash Course: Population Genetics. https://www.youtube.com/watch?v=WhFKPaRnTdQ. 16-1 Genetic equilibrium. Population genetics. : study of evolution from a genetic point of view. Basically how populations of a species evolve. The Haber process proceeds as follows:. . 2NH. 3 (g). + 92KJ ↔ N. 2 (g). + 3H. 2 (g) . . If the equilibrium concentrations are:. [NH. 3. ] = 3.1x10. -2. M. [N. 2. ] = 8.5x10. -1. M. [H. 2. p. = . (2 x 100) + 400 . = 0,3 . . 2 x 1000. q. = 1 – 0,3 = 0,7. 0,3 0,7. 1 - Determine the gene and genotypic frequencies of the following populations. :. p. = . Chapter 11 Biology Textbook. KEY CONCEPT . Hardy-Weinberg equilibrium provides a framework for understanding how populations evolve.. . Hardy-Weinberg equilibrium describes populations that are not evolving. . Lessons Learned and Future Perspective. David D. Briske. Ecosystem Science & Management. Texas A&M University. Development, Current Status and Lessons Learned. Turkana Region NW Kenya. Foundation of Range Management. . Scalars and vectors. . Types of forces. . Resultant of forces. . Equilibrium of particles. Scalar and Vectors. . Scalar - . a physical quantity that is completely described by a real number. . When the rates of the forward and reverse reactions become equal, the concentrations of the reactants and the products remain constant. This is the stage of chemical equilibrium. This equilibrium is . The Meaning of K. . K > 1 . . the equilibrium position is far to the right . K < 1 . . the equilibrium position is far to the left . The value of . K. for a system can be calculated from a known set of equilibrium concentrations. .