Amoeba Sisters
Gene Regulation and the Order of the Operon
Explore gene expression with the Amoeba Sisters, including the fascinating Lac Operon found in bacteria! Learn how genes can be turned "on" and "off" and why this is essential for cellular function.
Bozeman Science
Operon
In this video Paul Andersen describes the elements of an operon. The promoter allows the RNA polymerase to transcribe the required genes. The operator and repressor regulate the expression of the genes by blocking the RNA polymerase. The...
Catalyst University
Biosignaling - Sonic Hedgehog (Shh) Signaling Pathway
Biosignaling - Sonic Hedgehog (Shh) Signaling Pathway
JJ Medicine
Hedgehog Signaling Pathway in Vertebrates | Purpose and Mechanism
Introductory lesson on the Hedgehog Signalling Pathway in Vertebrates. The Hedgehog signaling pathway is important in embryological development of both invertebrates and vertebrates. Hedgehog proteins facilitate the activation of the...
Ancient Lights Media
The Control of Gene Expression
Genetic Expression Set: 2. This clip explains the various points in the process of transcription and translation where gene expression is regulated or gene products are modified.
Professor Dave Explains
Regulation of Gene Expression: Operons, Epigenetics, and Transcription Factors
We learned about gene expression in biochemistry, which is comprised of transcription and translation, and referred to as the "central dogma" of molecular biology. But how is this process regulated? How does a cell know which genes to...
Bozeman Science
Bozeman Science: The Operon
In this video, Paul Andersen describes the elements of an operon. The promoter allows the RNA polymerase to transcribe the required genes. The operator and repressor regulate the expression of the genes by blocking the RNA polymerase.