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Name _________________________ Period _____ The Purple Petunia http://www.pbs.org/wgbh/nova/sciencenow/3210/02.html 1. What analogy is used for DNA? 2. What analogy is used for mRNA? 3. What analogy is used for the ribosome? 4. What did the scientist want to do to the petunia? Why? 5. What happened to the petunia? Why? 6. What does RNAi stand for? 7. What disease is being studied using RNAi? 8. What analogy is used for a virus? 9. What other diseases might RNAi help cure?
