Mitochondria in Egg (IMAGE) Salk Institute Caption Salk Institute researchers used specialized molecules (called nucleases) to eliminate mutated DNA from mitochondria. This image shows the location of nucleases with mitochondria (yellow) in the egg. Credit Salk Institute Usage Restrictions with credit License Licensed 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.