Flashcards: Gene Regulation in Bacteria — 10 cards

Gene regulation — definition?

Process controlling gene expression levels.

Gene Regulation — definition?

Process controlling gene expression ON/OFF.

Operon — structure?

Cluster of genes with shared promoter and operator.

Operon — what?

Cluster of related genes with single promoter.

Promoter — role?

Binds RNA polymerase to start transcription.

Promoter — role?

Initiates transcription by RNA polymerase binding.

Operator — function?

Repressor binds to block transcription.

Structural Genes — function?

Code for proteins, e.g., lacZ, lacY, lacA.

Repressor — role?

Binds to operator to prevent transcription.

Lactose — function?

Inducer that inactivates repressor, enables transcription.