Overview
The lac operon is a classic model for understanding gene regulation in bacteria, particularly E. coli. It demonstrates how cells can adapt to their environment by controlling the expression of genes based on the availability of nutrients, such as lactose. The operon consists of structural genes, a p...
Key Terms
Example: The lac operon in E. coli.
Example: The lac operon is induced by lactose.
Example: LacI is the repressor for the lac operon.
Example: cAMP levels rise when glucose is low.
Example: CAP is activated by cAMP.
Example: Transcription of the lac operon occurs when lactose is present.
Related Topics
Trp Operon
Another operon model that is repressible and regulates tryptophan synthesis.
intermediateGene Regulation in Eukaryotes
Explores how gene expression is controlled in more complex organisms.
advancedCRISPR Technology
A revolutionary tool for gene editing that builds on principles of gene regulation.
advancedKey Concepts
Inducible OperonGene RegulationLactose MetabolismRepressor Protein