BIO 1110 Note Taking Week 9 10 20 15 Cancer body Tumor 2 types all cancers are caused by changes on DNA death due to ovarian cancer has not decreased cancer is a disease that eventually disrupts body functions whereas a tumor is a mass of cells with no apparent function in the benign non cancerous this is not cancer does not spread it can eventually become malignant in some cases malignant cancerous this is cancer has potential to spread to other parts of the body Role of cell division in cancer during normal cell division errors are caught and repaired apoptosis programmed cell death CA 125 cancer antigen 125 used as a tumor marker found on surface of many ovarian cancer cells Cancer is a genetic disease cancer have minimum of 6 9 different genes mutated cancer arises from the accumulation of genetic changes mutations From benign to malignant cancer cells divide too quickly and they travel to the blood lymph or tissues