Mirror Images (IMAGE) Cornell University Caption By tweaking just one or two genes, Cornell University researchers have altered the patterns on a butterfly's wings. This image shows normal and engineered wing patterns as mirror images. Credit Cornell University 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.