Cancer. What is Cancer?. uncontrolled cell growth (as opposed to steady-state replacement of cells) usually accompanied by de-differentiation of cells cancerous mass = tumor or neoplasm Natural selection: cells which grow faster than others will take up more and more space.
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1. Most mutagens are carcinogens:
2. Tumors are clonal:
3. Cancer runs in families:
Types of mutation to create active oncogenes from proto-oncogenes:
Progression of colorectal cancer (familial adenomatous cancer)