Study Qmitosis,cancer

Study Qmitosis,cancer - nuclei. Is it a bacterium, plant,...

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Biology Study Questions: Cell Division, Cancer 1. Explain 3 functions of cell division. 2. Describe the 3 stages of the cell cycle. When does cell division occur? 3. What happens during the G1, S, and G2 phases of interphase? 4. What is the difference between DNA, chromatin, and chromosomes? 5. Sketch and label a chromosome and a duplicated chromosome. Use these terms: chromatid, sister chromatid, centromere, telomere 6. List the 4 phases of mitosis and describe the events characteristic of each phase. Recognize the phases of mitosis from diagrams and micrographs. 7. What is cytokinesis? How does it occur in animal cells? in plant cells? 8. A cell biologist carefully measured the quantity of DNA in grasshopper cells growing in cell culture. Cells examined during the G1 phase of the cell cycle contained 200 units of DNA. What would be the amount of DNA in one of the grasshopper daughter cells right after cytokinesis? 9. A dividing cell has a line of vesicles on the metaphase plate between the two daughter
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Unformatted text preview: nuclei. Is it a bacterium, plant, or animal cell? What are these vesicles? 10. Explain how bacteria reproduce. What is this process called? 11. Describe 3 factors that can inhibit normal cell division. 12. List the 6 traits of cancer cells and explain how each can contribute to tumor growth. 13. What is apoptosis? How is it connected to cancer? 14. How are telomeres related to aging? to cancer? 15. How does a malignant tumor differ from a benign tumor? 16. What information is gained from a biopsy? 17. What is p53? Why is it involved in so many different types of cancer? 18. What are oncogenes? What is their origin? 19. What are tumor suppressor genes? What is their origin? 20. Why are treatments which damage the genome often not effective against cancerous cells? 21. Is cancer a disease of older people? Why or why not? 22. Explain how tumor growth selects for faster-growing cancer cells. 23. What are at least 4 things you can do to reduce your chances of cancer?...
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This document was uploaded on 03/18/2010.

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