What is BRCA1 AND BRCA2?

Written by Pam MS, NCSP | Fact checked by Psychology Dictionary staff 

n. the first-two major cancer genes associated with a person's susceptibility to breast and ovarian cancer. In women with mutations in one of these two genes, the risk of breast cancer is at 56-85%. A mutation in the second gene also increases the rate of male breast cancer, although the figure runs low at 5%.

BRCA1 AND BRCA2: "Thanks to the initial discovery of BRCA1 and BRCA2, cancer screening and testing was made possible."

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