Who should own DNA? All of us

Most court cases involving patent law are corporate battles, with one company suing another for infringing on its intellectual property rights and, therefore, profits. Big companies fighting over big money can seem painfully irrelevant, especially when so many of us are simply struggling to get by.

But the case coming before the U.S. Supreme Court on Monday challenging two patents is a different animal, with enormous implications for both our health and shared humanity. The patents in question are on two human genes, BRCA1 and BRCA2, commonly referred to as the "breast cancer genes."

We all have these genes in the cells of our bodies, but certain variants in some people significantly increase the risk of breast and ovarian cancer. Learning whether you have these risk-elevating mutations can be important because it gives you the opportunity to consider increased surveillance (such as cancer screenings and mammography) and even surgery to remove healthy organs.

The patents give one biotechnology company, Myriad Genetics Inc., sweeping control of the two genes. Myriad's monopoly harms women's health, impedes cancer research and raises important ethical...