“GENETICS is about to get personal.” So proclaims the website of 23andMe, a Californian company that is gearing up to offer people a guided tour of their own DNA. For the superstars of genetics, it has already got personal. Earlier this week, genomics pioneer Craig Venter revealed an almost complete sequence of his genome, while that of James Watson, co-discoverer of DNA’s double-helix structure, has been available on the web since late June.
