Genetically Heterogeneous Mice (IMAGE) PLOS Caption Genetically heterogeneous mice, derived from eight inbred strains, were used at the 50th generation for genetic mapping. Credit Photo: Flint et al. Usage Restrictions Please cite the authors and PLoS Biology as the source. 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.