Scientists Edited a Human Embryo—But It Didn’t Go Very Well
It’s an unprecedented feat: tweaking the genomes of human embryos. In a groundbreaking move, Chinese researchers have officially done it, but the announcement comes amid a whole bunch of ethical fracas. The technique, called CRISPR, seeks out genes that could cause problems like inherited diseases. CRISPR splices DNA, replacing the trouble gene with different molecules,…
