doublesex Expression Mirrors Future Wing Pattern (IMAGE) University of Chicago Medical Center Caption This photo shows the expression of doublesex protein (green) during development mirrors the future wing pattern of an adult Papilio polytes butterfly. Credit University of Chicago, Marcus Kronforst Usage Restrictions None 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.