Mice With Fluorescent Green Cells (image) Wellcome Trust Caption Scientists at the University of Cambridge bred mice with fluorescent green cells derived from haploid (single chromosome set) embryonic stem cells. Credit Anton Wutz and Martin Leeb, University of Cambridge/Nature Usage Restrictions Image may only be used in reference to the related research. 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.