Researchers analysed thousands of laboratory-made plasmids and discovered that nearly half of them had defects, raising questions of experimental reproducibility.
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So I went shopping. A day online gave me my first taste of the bewildering range of consumer genetic products. There was Family Tree DNA, specializing in tracing genetic genealogies. There was DNA Direct, whose Web site asked, "Do you have a chronic, undiagnosed condition? It could be genetic." For $260, I could get tested for cystic fibrosis; for $370, I could learn whether I'm at elevated risk of developing type 2 diabetes. Then there was Iceland-based deCODEme ("This is myCODE"), which could calculate my risks for twenty-five genetic maladies in one $985 package.
But why stop with just a few disease tests? As I always say, in for a few plot complications, in for the whole story.
Among the most visible of new genotyping services was 23andMe, with their slogan "Genetics just...