Biology 1002B Final: Bio- Final exam notes.docx

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Four most common types of cancer in canada. 40% of women, 45% of men can expect to contract some kind of cancer in their lives. Just less than 25% of women can expect to die from cancer, more than 25% of men can expect to die from cancer. Likely factors contributing to cancer incidence in canada. Older you are, the more likely you are at developing cancer. Second most likely non-accidental cause of death (heart disease is the first) Risk factors: exposure to dietary risk factors, exposure to environment. Lung and colon cancer suggest environmental risk factors. Breast and prostate cancer suggest internal risk factors. Balance of and interactions or internal and external factors that contribute to cancer. Role of cyclin/cdk complexes in cell cycle regulation. Cells may actively cycle, sit in g0 or undergo apoptosis. In the cell cycle there is a g1/s checkpoint that prevents cells from replicating their dna if it is damaged.

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