Everyone is talking about new gene editing tools such as CRISPR-Cas9, which have made it easy and cheap to tweak the genomes of anything from microorganisms to man. But how the hell do you ‘edit’ a genome?
Another tricky commission from monthly science mag BBC Focus: explain how all life started on Earth. Or, how chemistry somehow turned into biology, around 4bn years ago. Part of their ‘Understand…in ten minutes‘ series.