DUCTION This worksheet complements the Click and Learn "Creating Phylogenetic Trees from DNA Sequences" developed in conjunction with the 2011 Holiday Lectures on Science, "Bones, Stones, and Genes: The Origin of Modern Human." PROCEDURE Answer the following questions as you proceed through the activity slides. 1. Briefly explain how scientists draw relationships between organisms based on shared anatomical features. 2. How are DNA sequences used to deduce evolutionary relationships? 3. What is one advantage of building phylogenetic trees using DNA comparisons rather than anatomical features? 4. Watch the video clip on slide 3 and then draw a simple tree illustrating the evolutionary relationships between gorillas, chimpanzees, humans, and orangutans. 5. Watch the short video on slide 4. How has biotechnology affected the process of building phylogenetic trees from DNA sequences? 6. What do evolutionarily related organisms share? 7. What are two common types of mutations? 8. Watch the short animation on slide 6 and describe a SNP. 9. Watch the short animation on slide 7 and describe an indel. 10. Explain the difference between distantly related and closely related organisms in terms of their DNA sequences. 11. What does it mean to compare "apples to apples" when referring to DNA sequences from different organisms? 12. Watch the short animation on slide 10 and explain what is meant by "aligning" DNA sequences. 13. How is a SNP identified in an al

re BIVIILeTatirs Worksheet Creating Phylogenetic Trees from DNA Sequences Student Handout This worksheet complements the Click and Learn \"Creating Phylogenetic Trees from DNA Sequences\" developed in conjunction with the 2011 Holiday Lectures on Science, \"Bones, Stones, and Genes: The Origin of Modern Human,\" Answer the following questions as you proceed through the activity slides. 1. Briefly explain how scientists draw relationships between organisms based on shared anatomical features. PT 2. How are DONA sequences used to deduce evolutionary relationships? Pn 3. What is one advantage of building phylogenetic trees using DNA comparisons rather than anatomical features? PT 4. Watch the video clip on slide 3 and then draw a simple tree illustrating the evolutionary relationships between gorillas, chimpanzees, humans, and orangutans. pT 5. Watch the short video on slide 4. How has biotechnology affected the process of building phylogenetic trees from DNA sequences? PT 6. What do evolutionarily related organisms share? PO 7. What are two common types of mutations? Pt 8. Watch the short animation on slide 6 and describe a SNP. Pt