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Transcript
Ch 17 & 19.2 Patterns of Evolution LS-E14. Relate diversity and adaptation to structures and their functions in living organisms (e.g., adaptive radiation). LS-H20. Recognize that a change in gene frequency (genetic composition) in a population over time is a foundation of biological evolution. LS-I24. Analyze how natural selection and other evolutionary mechanisms (e.g., genetic drift, immigration, emigration, mutation) and their consequences provide a scientific explanation for the diversity and unity of past life forms, as depicted in the fossil record, and present life forms. We will be taking what we learned in the last unit about how evolution works and applying it to entire populations…what things make an entire population different over time? This is called macroevolution and involves what you learned about genetics in ch 11, as well as what you learned about evolution in ch 16. At the end of the unit, you will have a mixed format (multiple choice, short answer, diagrams…) test over the material. Pages in the book: ch 17, 482-499 (about molecular clocks) ch 19.2, 546 - 552 Vocab. cards due: Wednesday, Mar. 11 Vocabquiz: Friday, Mar. 13 Ch 17 & 19.2 Vocab + if you’re an expert (can explain to someone else) if you’ve heard of it (and know a little) 0 if you’ve never heard of it _____ gene pool _____ _____ allele frequency _____ _____ single-gene trait _____ _____ polygenic trait _____ _____ directional selection _____ _____ stabilizing selection _____ _____ disruptive selection _____ _____ genetic drift _____ _____ bottleneck effect _____ _____ founder effect _____ _____ genetic equilibrium _____ _____ Hardy-Weinberg Principle _____ _____ sexual selection _____ _____ species _____ _____ speciation _____ _____ reproductive isolation _____ _____ behavioral isolation _____ _____ geographic isolation _____ _____ temporal isolation _____ _____ molecular clock _____ _____ macroevolutionary patterns _____ _____ background extinction _____ _____ mass extinction _____ _____ gradualism _____ _____ punctuated equilibrium _____ _____ gene flow _____ _____ immigration _____ _____ emigration _____ _____ convergent evolution _____ _____ divergent evolution _____ _____ coevolution _____ _____ adaptive radiation _____ Learning Targets/ Skills: _____ Describe the gene pool and allele frequency in terms of a population (ch 17.1) _____ Describe sources of genetic variation a population (ch 17.1) _____ Differentiate between a single gene trait and a polygenic trait (ch 17.1) _____ Explain how evolution affects single gene traits and polygenic traits (ch 17.2) _____ Differentiate between directional selection, stabilizing selection and disruptive selection, including graphs of each (ch 17.2) _____ Explain genetic drift and things that can cause it (ch 17.2) _____ Explain genetic equilibrium and how to recognize it (ch 17.2) _____ Use the Hardy-Weinberg principle and identify what things can disturb it and cause evolution (ch 17.2) _____ Describe different ways speciation happens (ch 17.3) _____ Predict what will happen due to different kinds of isolation (ch 17.3) _____ Explain the concept of a molecular clock (ch 17.4) _____ Compare/contrast divergent and convergent evolution and the structures they lead to (ch 19.2) _____ Give examples of divergent evolution, convergent evolution, coevolution, and adaptive radiation (ch 19.2) _____ Interpret diagrams to tell how closely related organisms are evolutionarily (ch 19.2) _____ Differentiate between gradualism and punctuated equilibrium (ch 19.2)