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Ch. 18. Cancer and DNA Repair

Cancer is a genetic disease. ? Damage to DNA ? activate proto-oncogenes or inactivate tumor suppressor genes * oncogenes: viral genes which are ?responsible for transforming cells (cancer) and ?activated versions of normal cellular genes (proto-oncogenes)- proto-oncogene- tumor suppressor. Geneti

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Ch. 18. Cancer and DNA Repair

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    1. Ch. 18. Cancer and DNA Repair What is cancer? 1) Ability to proliferate uncontrollably and ignore usual signals to differentiate or undergo apoptosis Apoptosis: programmed cell death Carcinogenesis: cancer development 2) Resulted from genetic predisposition, environmental factors or infections

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