Fig. 2 (IMAGE) Osaka University Caption Genome editing using the Cas9 mutant, nickase. Nickase induces single-strand breaks (nicks) instead of DNA double-strand breaks. Nicks are typically repaired without causing mutations. Hence, even if nicks appear at sites different from nickase's original target, new gene mutations are seldom seen at these locations. This approach allows for precise gene correction with minimal off-target mutations. Credit S. Nakada Usage Restrictions No restrictions License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.