One gene defines the many patterns of snake skin (IMAGE) Université de Genève Caption In corn snakes, certain lineages have red, yellow or pink colours, and their dorsal spots can merge or form stripes. Credit © LANEVOL 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.