One of the genetic mutations that can lead to discrimination is a defect in the BRCA1 gene. The BRCA1 gene is a gene that can be categorized as a tumor suppressor. It has functions that include the regulation of transcription and the repair of damaged DNA. When the BRCA1 gene is not damaged, it functions as a control to ensure that cells do not divide rapidly or divide uncontrollably. When the BRCA1 gene is damaged, these functions cannot be carried out normally, so people with this type of genetic defect are predisposed to developing breast cancer, ovarian cancer, pancreatic cancer and cancer of the fallopian tubes. If someone undergoes genetic testing and the test reveals a mutation of the BRCA1 gene, she has several options for managing the increased risk for cancer. Some women with elevated cancer risk decide to undergo preventive mastectomies -- removal of breast tissue -- to prevent cancer from developing. Others use a more conservative approach to managing their cancer risk. They may get mammograms more often and see a doctor every six months instead of every year.