In a way, sequencing DNA is very simple: There's a molecule, you look at it, and you write down what you find. You'd think it would be easy—and, for any one letter in the sequence, it is. The problem ...

Knowing how human DNA changes over generations is essential to estimating genetic disease risks and understanding how we evolved. But some of the most changeable regions of our DNA have been ...

New technological advancements have allowed us to look at the entire human genome. The genome is the complete set of genetic information encoded in the DNA. Human DNA has around three billion letters ...

Add Yahoo as a preferred source to see more of our stories on Google. A SickKids led study has found that tiny repeated DNA segments called short tandem repeats vary not only in length but also in ...

Roche has put forward a new approach to genetic analysis, which it describes as sequencing-by-expansion—a proprietary method that pulls apart the DNA molecule and amplifies the signal of each ...

The newest DNA sequencing technology from Swiss multinational Roche doesn’t measure DNA directly but in fact analyzes a different polymer altogether. The technology is not yet available for sale, but ...

Every living organism has its own genetic "blueprint": the source code for how it grows, functions and reproduces. This ...

Advances in DNA sequencing have revealed something surprising—not everyone with the same genetic change develops the same ...