Evo Last Third Material

Evolution***Biology L318***Fall 2011 Study Guide for run 3 1. Explain how migration can maintain genetic revolution indoors a population? trace a scenario where migration could (a) keep rendering of population and (b) facilitate readjustment of a population. How would these scenarios be influenced by population size. 2. Explain to a friend or relative, who doesnt brace a biology background, what a G-matrix is and how it expedient for predicting the brusk and long term answer of population to selection. 3. Describe how you would attest a trait is (a) adjustive and (b) an adaptation. Give dickens reasons why an adjustive trait may not be an adaptation. accommodative trait increases the fitness of its bearer (part 2 of the syllogism) adjustment indication of an organism that breakd via NS for its current ply (all parts of the syllogism) It is lots harder to leaven that a trait is an adaptation (need to show an evolutionary result to sel ection) than it is adaptive (need to show selection). Adaptive trait may not be an adaptation: Not all adaptive traits suck evolved for their current function or any function at all Some adaptive traits are non-genetic 4. What is phenotypical plasticity? What is a reaction average?

How can you have phenotypic plasticity but no genetic constitution-by-environment interaction? What is adaptive plasticity? phenotypical plasticity ability of an organism to transmit its phenotype in response to changes in the environment Reaction norm pattern of phenotypic air of a single genotyp e across a orbit of environments Adaptiv! e plasticity genotype has capacity to produce diametrical phenotypes, suitable for different environmental conditions If a non-genetic trait increases fitness and the reaction norm varies among genotypes, and then plasticity itself can evolve and perhaps the plasticity is an adaptation to the environment. 5. How would you use a development to determine whether the evolution...If you want to devil a full essay, swan it on our website: OrderCustomPaper.com

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