Histones in Fruit Fly Embryo (image) University of Rochester Caption Histones (shown in green) in fruit fly embryos. They are stored on lipid droplets (small dots/rings) and -- when needed -- travel to nuclei (large spheres) to package DNA into chromosomes. Credit Photo by Zhihuan Li/University of Rochester. Usage Restrictions None 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.