Using a drug to freeze RNA polymerase II on Drosophila DNA, researchers found that transcription could not continue.
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During gene expression, multiple RNA polymerase II enzymes commonly transcribe a gene simultaneously.
© PENS AND BEETLES STUDIOSBut if a polymerase pauses on the gene, no new transcription is initiated until it restarts.
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Shawna was an editor at The Scientist from 2017 through 2022. She holds a bachelor’s degree in biochemistry from Colorado College and a graduate certificate in science communication from the University of California, Santa Cruz. Previously, she worked as a freelance editor and writer, and in the communications offices of several academic research institutions. As news director, Shawna assigned and edited news, opinion, and in-depth feature articles for the website on all aspects of the life sciences. She is based in central Washington State, and is a member of the Northwest Science Writers Association and the National Association of Science Writers.
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The liquid world of fetal development provides a rich source of nutrition and protection tailored to meet the needs of the growing fetus.
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