
As one of the most significant predictors of hereditary breast and ovarian cancer, the BRCA1/2 genes have become the poster child for genetic testing. In the past 18 months, the floodgates for testing options have opened, as companies seek to enter the diagnostic market in the wake of the US Supreme Court's June 2013 ruling that "naturally occurring" human genes are a "product of nature" and cannot be patented, breaking Myriad Genetics' monopoly on BRCA1/2 gene testing.