BRCA is a gene that repairs damaged DNA. Everyone inherits two, one from each parent.
Like all genes, BRCA can become mutated, altered in such a way that its function is impaired. Even a mutated BRCA gene can, and will, be passed down to subsequent generations. BRCA mutations occur in 1% of Ashkenazi Jews, are more commonly seen in hispanic than white women, and are more frequently associated with triple-negative breast cancer.
Two...
