The lac operon contains three genes: lacZ, lacY, and lacA (for?-galactosidase, galactoside permease, and thiogalactosidetransacetylase, respectively). The operon also contains a promotersite and an operator site. The regulatory gene includes the I genefor the Lac repressor protein and a promoter for thatgene.
The lac operon contains three genes: lacZ, lacY, and lacA (for beta-galactosidase, galactoside permease, and thiogalactoside transacetylase, respectively). The operon also contains a promoter site and an operator site. The regulatory gene includes the I gene for the Lac repressor protein and a promoter for that gene. The lac operon undergoes negative regulation. In the normal condition, the Lac repressor protein is active. Allolactose, an isomer of lactose, is the signal molecule that binds to the Lac repressor. Determine which events will increase the concentration of gene products and which will decrease the concentration of lac gene products.
