Observe that Guess a general formula and prove it by

09.27.16 CHAPTER 9: CELL DIVISION AND MITOSIS DRIVING QUESTIONS 1. When and how does normal cell division occur in the body 2. How do normal cells and cancer cells differ with respect to cell division 3. How are cancer treatment decisions made for a given patient 4. How are new cancer drugs developed NATURE’S PHARMACY I. 1988, taxol was discovered to treat ovarian cancer. a. 30% of women saw their tumors shrink. II. 1990, taxol was more effective at treating breast cancer. a. 50% of patients saw their tumors regress. III. Pacific yew tree a. Pacific Northwest b. Would need 1.3 million lbs of bark for medicine c. Would kill 360k trees d. Not including breast cancer treatments