Visualizing Transcription in An Embryonic Cell (image) California Institute of Technology Share Print E-Mail Caption Intron seqFISH enables 3D reconstruction of nascent transcription active sites (colored spots) in an embryonic stem cell (blue), with individual chromosomes occupying distinct spatial territories (colored differently). Here, 982 transcription active sites, corresponding to individual genes, are present in this cell. Credit Cai laboratory / Cell Usage Restrictions with image 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.