Evolution Lab Manual in .pdf format - Aipotu

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2) Click on the “Evolution” button at the top to go to the Evolution Work Area; you should seethis:These are the Settings; youset the fitness of each colorhere and the software showshow many of each color arepresent in the World.This is the World; theflowers live here.Each square showsthe color of the flowerliving there.These are the Controls; you stopand start the simulation here.3) You must first turn off mutation for this part of the lab. From the File menu, choosePreferences…; you will see this:Click on Mutation Rates, and you should see this:Uncheck the Mutations Enabled checkbox (the mutation rate numbers should gray out), andclick OK. Mutations are now off.Aipotu IV-4
Now, you will run some simulations of Natural Selection. First, to get a qualitative feel forwhat happens, and then more quantitatively. Note that, since mutations are off, no new alleleswill be produced, so no new colors will appear. If they do, you haven’t turned off mutations…A) Select for Red.A1) Click on the Red organism in the Greenhouse to select it; its border will turn green. Whileholding the shift key, click on the White organism in the Greenhouse; now, both should beselected.A2) Click the Load button in the Controls. The World will fill with a roughly 50:50 mix of redand white organisms. Note the count of red and white in the Settings panel; it should beabout 50 of each.A3) Set the Fitness settings in the Settings panel to select for red. Set the fitness of red to 10(the maximum) and all the other colors to 0 (the minimum).A4) Prediction: What should happen to the number of red and the number of white flowersafter several generations with this selection?A5) Test: Click the One Generation Only button in the Controls. This will run one generationonly. First, the starting flowers will contribute to the gene pool based on their fitnesses. Thenthe starting flowers will die off and be replaced by exactly 100 offspring. Each offspringflower will get two alleles randomly chosen from the gene pool.A6) Result: What happens to the counts of red and white flowers as you simulate moregenerations? Roughly how many generations does it take to get to pure red? Be careful, assome all-red generations can have some white offspring (why?).Aipotu IV-5
Page 1 and 2: Aipotu IV: EvolutionObjectives:•
Page 3: Part A: Population GeneticsIn this
Page 7 and 8: Now, we will get quantitative.C) Ha
Page 9 and 10: C11) Result: Calculate p and q as y
Page 11 and 12: MisconceptionsYou will be responsib
Page 13 and 14: D6) Switch to Biochemistry and doub
Page 15 and 16: D10) From the Compare menu, choose
Page 17 and 18: E4) Try to run the simulation until
Page 19 and 20: - Which misconception(s) does this
Page 21 and 22: Lab Report• Must be typed; hand-d

Evolution Lab Manual in .pdf format - Aipotu

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