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Gene regulation (Gene regulating is the process of choosing which gene…
Gene regulation
Gene regulating is the process of
choosing which gene in a DNA
is expressed
RNA polymerase must bind to the promoter region of a strand of DNA to turn on the specific gene
Operon
Linked structural genes with a common promoter and operator
Controlled by regulator genes that produce repressor proteins
Promoter region
DNA segment where RNA polymerase attaches and transcription begins
Lac operon
E.coli (bacteria)
Lac repressor (senses lactose)
Only works if lactose is present and glucose is not
Structural genes
Genes that produce proteins that become part of the structure and the functioning of organisms
Regulator genes
Genes that produce proteins that control the action of other genes.
Proteome
The complete array of proteins produced by a cell or organism
Gene
Coding Region
On either side, there is a flanking region
Segments of the coding region are called the EXON
Homeotic genes
Genes that control embryonic development in insects and in vertebrates
DNA
RNA
Trp Operon
RNA Polymerase
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