Gene drives have rapidly become a routine technology in some laboratories; scientists can now whip up a drive in months. The technique relies on the gene-editing tool CRISPR and some bits of RNA to alter or silence a specific gene, or insert a new one. In the next generation, the whole drive copies itself onto its partner chromosome so that the genome no longer has the natural version of the chosen gene, and instead has two copies of the gene drive. In this way, the change is passed on to up to 100% of offspring, rather than around 50%.
Since 2014, scientists have engineered CRISPR-based gene-drive systems in mosquitoes, fruit flies and fungi, and are currently developing them in mice.
Read full, original post: Self-destructing mosquitoes and sterilized rodents: the promise of gene drives