Drosophila Synaptonemal Complex (IMAGE) Stowers Institute for Medical Research Caption The Drosophila synaptonemal complex forms between homologous chromosomes as two distinct layers that mirror each other. Credit Illustration by Ryan Kramer. 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.