Is genetic testing the next big business opportunity?
The extraordinary breakthroughs in the science of genetics in recent years have big commercial implications, and not just for drugs and other treatments.
One area with huge potential for profit is genetic testing for consumers - healthy people who want to be able to read their genetic horoscope.
Now you can send off a sample of saliva and buy a personalised read-out of part of your DNA blueprint, without going through doctors.
One of the companies which offers this kind of testing is the California-based '23 and me', so named because all of us have 23 pairs of chromosomes.
Prices start at $399 - the company will survey your genes, and provide you with a long list of health predispositions and risks for various diseases.
Linda Avey, the co-founder of the company, told the BBC's Lesley Curwen what the company offers its customers.