DNA Uptake (IMAGE) University of California - San Diego Caption Columns show samples of cyanobacteria taken at different times of day and incubated with DNA that, if taken up and incorporated, allows them to grow on an antibiotic-containing medium. Green growth higher in the column shows more cells have taken up DNA. The samples in the center, around dusk and early night, are thousands of times better at taking up DNA than samples at dawn (left and right edges). Credit Golden Lab, UC San Diego Usage Restrictions Must be used in conjunction with UC San Diego paper in Nature Communications on circadian alignment. 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.