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Gene regulation

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Operons and gene regulation in bacteriaTrp operonLac operonOverview: Gene regulation in bacteriaThe lac operonThe trp operon
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Overview: Eukaryotic gene regulationTranscription factorsRegulation after transcription

About this unit

You have tens of thousands of genes in your genome. Does that mean your cells express all of those genes, all the time? Not by a long shot! Even an organism as simple as a bacterium must carefully regulate gene expression, ensuring that the right genes are expressed at the right time. Learn more about the mechanisms cells use to turn genes "on" and "off."
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