An introduction to the processes by which cells control which genes are expressed. We begin with an overview of why genetic regulation is necessary and the key stages where such regulation occurs, including key concepts such as transcription factors and DNA binding domains. We then discuss prokaryotic gene regulation, focusing on the lac operon in E. coli. We then expand the discussion to cover the various mechanisms of eukaryotic gene regulation, including chromatic remodelling, transcriptional regulation, post-transcriptional regulation, RNA editing, and micro RNAs. Recommended pre-listening is Episodes 34-35: DNA Structure and Function, and Episode 118: Cell Signalling.
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