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Team Evolution

Team Evolution. Bianca Romino Mothè Denise Garcia George Vourlitis Kate Loudon Nancy Aguilar-Roca. Teachable Unit for Evolution Learning goals. Understand the role of variation in evolution To understand the role of evolutionary processes across all levels of biological organization

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Team Evolution

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  1. Team Evolution Bianca Romino Mothè Denise Garcia George Vourlitis Kate Loudon Nancy Aguilar-Roca

  2. Teachable Unit for EvolutionLearning goals • Understand the role of variation in evolution • To understand the role of evolutionary processes across all levels of biological organization • Apply the scientific method to evolutionary processes

  3. From our previous classes, you should know…. • Evolutionary mechanisms including • Natural selection • Genetic drift • How to calculate and convert between • Allelic frequencies • Genotypic frequencies

  4. Teachable Tidbit Instructions (formative assessment for goal 1) Each cup has 20 marked and 20 plain seeds representing an allelic frequency of 50% each in our gene pool. 1) Without looking, randomly remove two alleles from the cup (=1 individual).  Record the identity of the alleles on the data sheet. Put the alleles back into the cup. 2) 3) Calculate the percentage of each allele in this new generation and record those numbers. Use the new calculated percentages to restock the population with 40 alleles (20 individuals). 4) Repeat steps 1 to 3 two additional times to simulate 3 generations. Be sure to record the data for each generation. 5) Graph the change in allele frequency over time for your population and put your graph on the board. For blue groups Repeat step 1 until you have data for a total of 20 individuals.  These 20 individuals represent the next generation. For red groups Repeat step 1 until you have data for a total of 5 individuals.  These 5 individuals represent the next generation.

  5. Teachable Tidbit Discussion • With your group, discuss the following questions: • What happened to genetic diversity during the 3 generations? • In what ways were the results from the blue and red tables similar or different? • Given these trends, hypothesize what might happen to genetic diversity over multiple generations.    • Discuss an underlying evolutionary mechanism for the observed results.

  6. Goal 1: Understand the role of variation in evolution

  7. Goal 2: To understand the role of evolutionary processes across all levels of biological organization Experimental Data Protein frequency after split

  8. Goal 3: Apply the scientific method to evolutionary processes

  9. Thanks!! • Clarissa & Summer Institute • The Evergreen State College • Chris Tubbs for helping us become an awesome group and calling us out on all of our anti-group behaviors. • Summer Institute participants for their feedback.

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