Test #2 Last-minute Study Guide
Test #2 Last-minute Study Guide Biol 180
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This 1 page Study Guide was uploaded by AmitTal on Thursday October 29, 2015. The Study Guide belongs to Biol 180 at University of Washington taught by Scott Freeman in Summer 2015. Since its upload, it has received 584 views. For similar materials see Introductory Biology in Biology at University of Washington.
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Date Created: 10/29/15
BIOL 180 Test 2 Cramming MAJOR TOPICS o Evolutionary processes 0 HardyWeinberg equilibrium 0 Gene variation frequencies Genetic Drift If you have a dominant gene will it always go to xation No Environmental factors can in uence that and cause the gene to become deleterious Drift is random Why do quantitative traits form a normal distribution Because they are polygenetic and the different alleles play a role in contributing to the phenotype HardyWeinberg equilibrium is the null hypothesis for the theory of evolution It s a model that assumes no evolution no genetic drift gene ow mutation nonrandom mating Inbreeding can cause depression through increased homozygosity of deleterious alleles Small population genetic drift can move alleles to xation or loss much faster Example p rate in yeast is 110quot10base Haploid genome is 510quot8 bases Q on average how many p s in a haploid offspring A 110quot10pbase510quot8 baseshaploid 510quot2o05individual Let s say yeast has 10 000 genesgenome Q What is the rate per gene A 510quot210 000 510quot6 pgene Calculating change in genome pgeneration X generations 01change solve for X 0203 is a really good R squared value Low rquot2 value indicates greater variation observed in the data percent of the time that the variation in the Xvariable explains the variation in the y variable Chisquared tests tell you the chance that the difference between observed and expected values are due to chance
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