1. Open the Virtual Lab: “The Cell Cycle and Cancer.”
2. IMPORTANT: This webpage includes a “journal” and “data table” as part of the lab. You DO NOT have to e-mail or submit these to your instructor; you can completely ignore them. The only thing you must turn in for this lab is this worksheet, which must be submitted on Blackboard.
3. The lab simulation will be on the right side of the screen, and the “Question” column will be on the left side. Read all of the background information and instructions in the “Question” column.
4. Watch the video on mitosis by clicking on the monitor in the lab simulation.
5. Fill out Table 1 with the name of each stage when the following events occur: Events | Stage | Chromosomes split apart move toward opposite sides of the cell | | Chromosomes line up in the middle of the cell | | The nuclear membrane disappears and the chromatin coils to form visible chromosomes | | The final phase of mitosis, where two daughter cells are formed | |
6. Click the “Information” button in the bottom right corner of the lab simulation. Read all of the background information on cancer.
7. Cancer develops when cells lose their ability to regulate their ______________. (Highlight the correct answer below.) a. Chromosomes b. Cell cycle c. Size d. Nuclei
8. Which of the following is NOT something that can cause a cell to lose control of its cell cycle? e. Mutation in a tumor suppressor gene f. Too many growth factors present g. Too much sugar in your diet h. A mutation in proto-oncogenes
9. How many deaths were caused by stomach cancer in 2007? i. 21,260 j. 11,210 k. 15,280 l. 160,390 10. Which
