Main content
Unit 16: Gene regulation
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."
Biology is brought to you with support from the Amgen Foundation
AP® is a registered trademark of the College Board, which has not reviewed this resource.