3-D Mouse Cell Genome (1 of 2) (video) University of Cambridge Share Print E-Mail Loading video... Caption Intact genome from one particular mouse embryonic stem cell. Each of the cell's 20 chromosomes is colored differently. Credit University of Cambridge and MRC Laboratory of Molecular Biology Usage Restrictions With credit Share Print E-Mail 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.