The microbes that make up an organism’s microbiome have a range of effects on its health. Scientists use CRISPR systems to genetically manipulate specific bacterial species, for instance those found ...

CRISPR is a technology that can be used to edit genes and, as such, will likely change the world. The essence of CRISPR is simple: it’s a way of finding a specific bit of DNA inside a cell.

CRISPR-guided endonucleases were an obvious route, but for RNA, the options were few and imperfect. Cas13 proved useful for RNA knockdown, but it caused collateral damage to non-target RNA. Although ...