Chromosomes imaged (IMAGE) University College London Caption The spread of 46 human chromosomes measured using X-rays in the study, with colour added. Credit Archana Bhartiya et al/ Chromosome Research Usage Restrictions Only in relation to this study. 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.