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.
Palomar Community College District
Wayne's Word: Transposons and Jumping Genes
The author uses playing cards to provide a useful explanation of 'jumping genes'.
Other
Control of Gene Expression
This site goes through the process from control at DNA to transcription and translation. Some illustrations to help show the process. Links for vocabulary words and other illustrations.
Other
Gene Expression & Regulation
Provides some very straight forward information regarding genetic information an DNA. Find out about synthesizing proteins, the Central Dogma of molecular biology, and much more.
Howard Hughes Medical Institute
Hhmi: Biointeractive: Virtual Transgenic Fly Lab
A fantastic interactive laboratory in which transgenic flies are created and used to study circadian rhythms. Excellent supporting information and resources for teachers and students.
Cold Spring Harbor Laboratory
Dna From the Beginning: Classical Genetics
This article from DNA from the beginning is loaded with goodies about genetics and DNA. Starting with Mendel all the way through the concept of DNA, you will see how life is given certain characteristics. Some animations and audio clips...
Wikimedia
Wikipedia: Gene Expression
Gives a basic definition and also discusses how it is measured. Gives extra links for other research sources.