Fluorescent proteins (IMAGE) University of Minnesota Caption A University of Minnesota Twin Cities-led team has developed a new technique for imaging mRNA molecules in the brains of living mice. By genetically modifying a mouse so that it produced mRNA labeled with green fluorescent proteins (shown above), the researchers were able to see when and where the mouse’s brain generated Arc mRNA. Credit Hye Yoon Park, University of Minnesota Twin Cities Usage Restrictions None 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.