Cold Spring Harbor Laboratory
Dna From the Beginning: Genes Can Be Turned on and Off
Two French scientists describe the research they did to figure out how bacteria turn certain genes on and off. The topic is a little involved, but the animations should help you understand the process.
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Gene Machine the Lac Operon
Build a gene network! The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. Explore the effects of mutations within the lac operon by adding or removing genes from the DNA.
CK-12 Foundation
Ck 12: Gene Regulation in Prokaryotes
[Free Registration/Login may be required to access all resource tools.] Provides an overview of gene regulation in prokaryotic cells while defining operon, explaining the roles of the operator, the promoter, and the repressor, and...
CK-12 Foundation
Ck 12: Biology: Prokaryotic Gene Regulation
[Free Registration/Login may be required to access all resource tools.] Covers gene regulation in prokaryotes.