There are a number of credible sources of information thatsomeone could use to learn more about the science of a topic likecancer. The Internet is often a good place to start, but you haveto be careful about whether a source of information is reliable.The C.R.A.P. Test () is a useful tool to check the Currency,Reliability, Authority, and Purpose of Internet sources. Here are afew sites you can begin with, but there are certainly many others.Use the websites and videos to learn more about cancer and findinformation that will help you answer the questions below.

Websites • American Cancer Society: • Cancer Quest: • Centersfor Disease Control and Prevention: • Medline Plus: • NationalCancer Institute: • Susan G. Komen Foundation: Videos • AmoebaSisters. “The Cell Cycle and Cancer” (7:41) • Cancer TreatmentCenters of America. “What is Cancer?” (6:35) • CancerQuest.“Animated Introduction to Cancer Biology (Full Documentary)”(12:07) • Healthchanneltv. “Breast Cancer—Symptoms and Treatments”(2:34)

Questions

1. What is cancer and how does it relate to the cell cycle?

2. What are proto-oncogenes and tumor suppressor genes, and howdo they contribute to cancer?

3. What are some things that might make a person have a higherrisk of developing cancer?

4. What are some of the major steps that occur in theprogression from a single cancer cell to a tumor and then to manytumors spreading throughout the body?

5. As tumors grow and spread, the cells undergo a number ofchanges. How might the cells in a late-stage tumor be differentfrom the original cell that became cancerous?

6. Why are different types of cancers named based on where inthe body they originate (breast cancer, skin cancer, bone cancer,etc.)? Why does it matter from which organ or tissue type cancerdeveloped?

Please answer the questions and use reliable sources toback up your answer that are shown in the text above. And answerALL questions 1-6, thank you.