In addition, a gene’s owner can in some instances also own the mutations of that gene, and these mutations can be markers for disease. Countries that don’t have gene patents actually offer better gene testing than we do, because when multiple labs are allowed to do testing, more mutations are discovered, leading to higher-quality tests.

Apologists for gene patents argue that the issue is a tempest in a teapot, that patent licenses are readily available at minimal cost. That’s simply untrue. The owner of the genome for Hepatitis C is paid millions by researchers to study this disease. Not surprisingly, many other researchers choose to study something less expensive.

But forget the costs: why should people or companies own a disease in the first place? They didn’t invent it. Yet today, more than 20 human pathogens are privately owned, including haemophilus influenza and Hepatitis C. And we’ve already mentioned that tests for the BRCA genes for breast cancer cost $3,000. Oh, one more thing: if you undergo the test, the company that owns the patent on the gene can keep your tissue and do research on it without asking your permission. Don’t like it? Too bad.

The plain truth is that gene patents aren’t benign and never will be. When SARS was spreading across the globe, medical researchers hesitated to study it — because of patent concerns. There is no clearer indication that gene patents block innovation, inhibit research and put us all at risk.

Even your doctor can’t get relevant information. An asthma medication only works in certain patients. Yet its manufacturer has squelched efforts by others to develop genetic tests that would determine on whom it will and will not work. Such commercial considerations interfere with a great dream. For years we’ve been promised the coming era of personalized medicine — medicine suited to our particular body makeup. Gene patents destroy that dream.

Fortunately, two congressmen want to make the full benefit of the decoded genome available to us all. Last Friday, Xavier Becerra, a Democrat of California, and Dave Weldon, a Republican of Florida, sponsored the Genomic Research and Accessibility Act, to ban the practice of patenting genes found in nature. Mr. Becerra has been careful to say the bill does not hamper invention, but rather promotes it. He’s right. This bill will fuel innovation, and return our common genetic heritage to us. It deserves our support.