The lac operon - Khan Academy
To use lactose, the bacteria must express the lac operon genes, which encode key enzymes for lactose uptake and metabolism. To be as efficient as possible, E. coli should express the lac operon only when two conditions are met:
Lac operon (video) | Khan Academy
The lac operon in E. coli regulates lactose metabolism. It consists of three genes (lacZ, lacY, and lacA) and is controlled by a promoter, operator, and CAP site. Lactose presence triggers allolactose production, which inhibits the lac repressor, allowing transcription.
Overview: Gene regulation in bacteria (article) | Khan Academy
Lac operon. The lac operon. Trp operon. The trp operon. Overview: Eukaryotic gene regulation. Transcription factors. Regulation of gene expression and cell specialization. Science > AP®︎/College Biology > Gene expression and regulation > Regulation of gene expression and cell specialization
Lac operon - Khan Academy
The lac operon in E. coli regulates lactose metabolism. It consists of three genes (lacZ, lacY, and lacA) and is controlled by a promoter, operator, and CAP site. Lactose presence triggers allolactose production, which inhibits the lac repressor, allowing transcription.
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Operon TRP (vídeo) | Khan Academy
O operon trp é um operon bem estudado quando se trata de regulação gênica. Está envolvido na biossíntese do aminoácido triptofano.