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Evolution of Populations 1 Slide Answers

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Biological Science
BS 182H

Overview of LectureMicroevolution IRead Text pgs 450451 ch 2223Microevolutionary patterns and processes with a careful look at the concept and use of heritability the distinction between having particular alleles and using expressing them and some ways parents control gene expressionBullet Points phenotypic variation phenotypic selection within generationsheritabilityphenotypic response across generationssome complications when partitioning varianceheritability of physical traits and IQ evolution in actionfluctuating selection on finch beaksdirectional selection of timing of migrationdirectional selection of antibiotic resistance having a gene vs expressing a geneepigenetic effects on gene expressionmethylationimprintingparental modulation of gene expressionloss of imprinting and diseaseThis should say selected population An organism exposes its phenotypebig benthicnot its genotype to the environment little limnetic sticklebacks Phenotypic selection within ageneration within the pop requires phenotypic variationGenetic response across generations evolution of a population genotype requires a correlation between genotypesphenotypesheritability Heritability is an estimate of the proportion of phenotypic variation in the populationadditive genetic variation nature that results from different genes rather than different environmental effects nurturearcane genetic interactions
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