Everyone's heard of DNA, genetics and genome sequencing, but you might not actually know exactly how scientists go about making it all happen. This TED Ed video explains, nicely and simply, how it works.
There's a huge leap between taking a sample from a human being and identifying how your genetic coding can impact on health—and it's all down to working out a sequence of chemicals strung together in your DNA. Here's how it's done. [TED Ed]