ONCOLOGY MCQ

mutation of the BRCA1 gene may be associated with an increased risk of both breast and ovarian cancer. chemoprevention with tamoxifen is of proven benefit. most affected families share the same specific mutation of the BRCA1 gene. about 75% of affected family members develop breast cancer before the age of 35 years. 29. BRCA-1: Type of oncogene ................
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