Singheart RNA (IMAGE) National University Health System Caption A mouse heart cell with 2 nuclei (blue) and Singheart RNA labelled by red fluorescent dyes. Credit A*STAR's Genome Institute of Singapore Usage Restrictions Image may only be used with appropriate caption or 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.