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22 Dec 2020 Share: How does the cell know when to stop transcribing? What is the purpose of noncoding RNAs? Another win for multi-disciplinary research as results from the Whitehead Institute suggest that the products of transcription -- RNA molecules -- regulate their own production through a feedback loop and may have at last solved the mystery of noncoding RNAs... At any given moment in the human body, in about 30 trillion cells, DNA is being 'read' into molecules of messenger RNA, the intermediary step between DNA and proteins, in a process called transcription. Scientists have a pret...

 E-Mail IMAGE: Researchers formed these droplets in the lab to investigate the role of RNA in their formation and dissolution. view more  Credit: Jon Henninger/Whitehead Institute At any given moment in the human body, in about 30 trillion cells, DNA is being "read" into molecules of messenger RNA, the intermediary step between DNA and proteins, in a process called transcription. Scientists have a pretty good idea of how transcription gets started: proteins called RNA polymerases are recruited to specific regions of the DNA molecules and begin skimming their way down the strand, syn...