Transposon Activity in Stem Cells (image) Babraham Institute Share Print E-Mail Caption Embryonic stem cells modified to lack DNA methylation allowing transposons to become active. DNA shown in blue. Cells containing active transposons shown in red. Credit Rebecca Berrens Usage Restrictions Credit: Rebecca Berrens 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.