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- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Map%3A_Raven_Biology_12th_Edition/16%3A_Control_of_Gene_Expression/16.03%3A_Prokaryotic_RegulationThe DNA of prokaryotes is organized into a circular chromosome supercoiled in the nucleoid region of the cell cytoplasm. Proteins that are needed for a specific function, or that are involved in the s...The DNA of prokaryotes is organized into a circular chromosome supercoiled in the nucleoid region of the cell cytoplasm. Proteins that are needed for a specific function, or that are involved in the same biochemical pathway, are encoded together in blocks called operons. For example, all of the genes needed to use lactose as an energy source are coded next to each other in the lactose (or lac) operon.
- https://bio.libretexts.org/Courses/Coastline_College/Book-_Cells_-_Molecules_and_Mechanisms_(Wong)/11%3A_Gene_Regulation/11.01%3A_Prokaryotic_Transcriptional_RegulationTo define a gene, a stretch of DNA must have a promoter, a start site, and and a stop site. In a prokaryote, these are necessary and often sufficient, but in a eukaryote, they are still necessary, but...To define a gene, a stretch of DNA must have a promoter, a start site, and and a stop site. In a prokaryote, these are necessary and often sufficient, but in a eukaryote, they are still necessary, but seldom sufficient. This chapter discusses the other elements, both positive and negative, that are used to regulate the expression (i.e. transcription) of a gene. It is primarily a story of transcription factors and the recognition elements to which they bind.
- https://bio.libretexts.org/Courses/Reedley_College/Biology_for_Science_Majors_I/15%3A_Gene_Expression/15.03%3A_Prokaryotic_Gene_RegulationThe DNA of prokaryotes is organized into a circular chromosome supercoiled in the nucleoid region of the cell cytoplasm. Proteins that are needed for a specific function, or that are involved in the s...The DNA of prokaryotes is organized into a circular chromosome supercoiled in the nucleoid region of the cell cytoplasm. Proteins that are needed for a specific function, or that are involved in the same biochemical pathway, are encoded together in blocks called operons. For example, all of the genes needed to use lactose as an energy source are coded next to each other in the lactose (or lac) operon.
- https://bio.libretexts.org/Workbench/Modern_Genetics/08%3A_Molecular_Genetics_II_-_Regulation_of_Gene_Expression/8.02%3A_Prokaryotic_Gene_RegulationThe DNA of prokaryotes is organized into a circular chromosome supercoiled in the nucleoid region of the cell cytoplasm. Proteins that are needed for a specific function, or that are involved in the s...The DNA of prokaryotes is organized into a circular chromosome supercoiled in the nucleoid region of the cell cytoplasm. Proteins that are needed for a specific function, or that are involved in the same biochemical pathway, are encoded together in blocks called operons. For example, all of the genes needed to use lactose as an energy source are coded next to each other in the lactose (or lac) operon.
- https://bio.libretexts.org/Courses/City_College_of_San_Francisco/Introduction_to_Genetics/08%3A_Genes_and_Proteins/8.07%3A_Gene_Expression/8.7.03%3A_Prokaryotic_Gene_RegulationThe DNA of prokaryotes is organized into a circular chromosome supercoiled in the nucleoid region of the cell cytoplasm. Proteins that are needed for a specific function, or that are involved in the s...The DNA of prokaryotes is organized into a circular chromosome supercoiled in the nucleoid region of the cell cytoplasm. Proteins that are needed for a specific function, or that are involved in the same biochemical pathway, are encoded together in blocks called operons. For example, all of the genes needed to use lactose as an energy source are coded next to each other in the lactose (or lac) operon.
- https://bio.libretexts.org/Bookshelves/Cell_and_Molecular_Biology/Book%3A_Cells_-_Molecules_and_Mechanisms_(Wong)/09%3A_Gene_Regulation/9.01%3A_Prokaryotic_Transcriptional_RegulationTo define a gene, a stretch of DNA must have a promoter, a start site, and and a stop site. In a prokaryote, these are necessary and often sufficient, but in a eukaryote, they are still necessary, but...To define a gene, a stretch of DNA must have a promoter, a start site, and and a stop site. In a prokaryote, these are necessary and often sufficient, but in a eukaryote, they are still necessary, but seldom sufficient. This chapter discusses the other elements, both positive and negative, that are used to regulate the expression (i.e. transcription) of a gene. It is primarily a story of transcription factors and the recognition elements to which they bind.
- https://bio.libretexts.org/Workbench/BIOL_190%3A_General_Biology_(OpenStax)/03%3A_Unit_III-_Genetics/3.06%3A_Gene_Expression/3.6.03%3A_Prokaryotic_Gene_RegulationThe DNA of prokaryotes is organized into a circular chromosome supercoiled in the nucleoid region of the cell cytoplasm. Proteins that are needed for a specific function, or that are involved in the s...The DNA of prokaryotes is organized into a circular chromosome supercoiled in the nucleoid region of the cell cytoplasm. Proteins that are needed for a specific function, or that are involved in the same biochemical pathway, are encoded together in blocks called operons. For example, all of the genes needed to use lactose as an energy source are coded next to each other in the lactose (or lac) operon.
- https://bio.libretexts.org/Bookshelves/Microbiology/Microbiology_(Boundless)/07%3A_Microbial_Genetics/7.18%3A_Global_Regulatory_Mechanisms/7.18B%3A_The_trp_Operon_-_A_Repressor_OperonThe trp operon is a repressor operon that is either activated or repressed based on the levels of tryptophan in the environment.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/General_Biology_2e_(OpenStax)/03%3A_Unit_III-_Genetics/3.06%3A_Gene_Expression/3.6.03%3A_Prokaryotic_Gene_RegulationThe DNA of prokaryotes is organized into a circular chromosome supercoiled in the nucleoid region of the cell cytoplasm. Proteins that are needed for a specific function, or that are involved in the s...The DNA of prokaryotes is organized into a circular chromosome supercoiled in the nucleoid region of the cell cytoplasm. Proteins that are needed for a specific function, or that are involved in the same biochemical pathway, are encoded together in blocks called operons. For example, all of the genes needed to use lactose as an energy source are coded next to each other in the lactose (or lac) operon.
- https://bio.libretexts.org/Courses/Norco_College/OpenStax_Biology_2e_for_Norco_College/16%3A_Gene_Expression/16.03%3A_Prokaryotic_Gene_RegulationThe DNA of prokaryotes is organized into a circular chromosome supercoiled in the nucleoid region of the cell cytoplasm. Proteins that are needed for a specific function, or that are involved in the s...The DNA of prokaryotes is organized into a circular chromosome supercoiled in the nucleoid region of the cell cytoplasm. Proteins that are needed for a specific function, or that are involved in the same biochemical pathway, are encoded together in blocks called operons. For example, all of the genes needed to use lactose as an energy source are coded next to each other in the lactose (or lac) operon.
- https://bio.libretexts.org/Courses/American_River_College/BIOL_400%3A_Principles_of_Biology_(Wolfe)/04%3A_Untitled_Chapter_4/17%3A_Gene_Expression/17.02%3A_Prokaryotic_Gene_RegulationThe DNA of prokaryotes is organized into a circular chromosome supercoiled in the nucleoid region of the cell cytoplasm. Proteins that are needed for a specific function, or that are involved in the s...The DNA of prokaryotes is organized into a circular chromosome supercoiled in the nucleoid region of the cell cytoplasm. Proteins that are needed for a specific function, or that are involved in the same biochemical pathway, are encoded together in blocks called operons. For example, all of the genes needed to use lactose as an energy source are coded next to each other in the lactose (or lac) operon.
