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Unformatted text preview: genes can be suppressed. When checkpoint controls go awry, abnormal division results. Accumulated mutations are a factor in aging and may result cancer. We don't have all the answers. Cancer cells have abnormal plasma membranes and abnormal cytoplasm. Cancer cells divide rapidly and ignore overcrowding inhibition signals. They can make masses of cells called tumors. Cancer cells promote angiogenesis new blood vessel development that "feeds" the growing tumors. Once cell controls are not in effect, rapidly dividing cancer cells lose normal positioning and adhesion properties, too. Cancer cells can metastasize migrate to new areas of the body and start growths in different tissues. Spread of cancer makes it more difficult to treat....
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This note was uploaded on 12/29/2011 for the course BIO 151 taught by Professor Edwards during the Spring '10 term at SUNY Stony Brook.
- Spring '10