StudyQuestions Week2 - Biology 180 Week 2 Study Questions...

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Biology 180 Week 2 Study Questions Autumn 2010 Do these questions with your study group (~4 people). Follow these rules: Everyone must participate in every question that you work on. Listen to each person’s contributions. At least once during each study session, each group member should challenge another member’s ideas. Assign roles: If your group isn’t part of a large session at CLUE or Tribeta or the IC, one person should serve as timekeeper; one as organizer (keeping people on task and getting a consensus on when to move on to the next question for discussion); one as group-dynamics checker (making sure everyone is heard and respectful); one as challenger (making sure that all ideas are carefully considered). 4a. God is changing the characteristics of weeds. 4b When weeds strive to grow in the presence of herbicides, their characteristics change in ways that make them better able to grow in this environment. They pass these traits on to offspring, so the population changes over time. 4c Weed populations have heritable variation for herbicide resistance. Individuals with alleles for resistance produce more offspring than individuals without those alleles. As a result, the frequency of resistance alleles increases over time. Format: 1. Each person should write answers to the first 4 questions on their own, in 15 minutes or less (these questions would be worth about 30 points on an exam). 2. Discuss each question (3 minutes each). 3. Exchange papers and use the answer key on p3 to grade each other for full credit, partial credit, or no credit (1 minute each). 4. Read through the rest of the question list. Each person should decide which question they want to work on most (meaning that they are LEAST confident about). 5. Go through the rest of the questions, taking turns to decide which to discuss next. 6. Each member of the group should write 2 exam questions, based on key concepts from this week, identified in your weekly notes summary. Use these questions to quiz each other. 1. Herbicide resistance is currently increasing in many populations of weeds. a) Under the theory of special creation, why are these changes occurring? b) Under the theory of evolution via inheritance of acquired characters, why are these changes occurring? c) Under the theory of evolution by natural selection, why are these changes occurring?
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2. Consider how evolution by natural selection works. a. Last fall, Dr. Freeman posed an exam question that reviewed how HIV populations have evolved in response to antiviral drugs, then asked how populations will change in the future. The correct answer is: “It depends on the environment.” Explain why. b.
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This note was uploaded on 10/26/2010 for the course BIOL 180 taught by Professor Freeman during the Fall '07 term at University of Washington.

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StudyQuestions Week2 - Biology 180 Week 2 Study Questions...

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