CRISPR is revolutionary. It’s also a total brute. The classic version of the gene editing wunderkind literally slices a gene to bits just to turn it off. It’s effective, yes. But it’s like putting an electrical wire through a paper shredder to turn off a misbehaving light bulb. Once the wires are cut, there’s no … Continue reading A New CRISPR Tool Flips Genes On and Off Like a Light Switch