The powerful gene-editing tool CRISPR has been making headlines for its ability to edit DNA, which could one day transform how we fight cancer and other life-threatening diseases. Now, scientists have created a new version of CRISPR that can target and edit a different genetic building block: RNA. The new tool, described in a study published today in Science, offers several advantages: its edits, for instance, aren’t permanent, which makes gene editing much safer.
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