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Chapter 26 The Operon

26.1 Introduction. coupled transcription/translation The phenomena in bacteria where translation of the mRNA occurs simultaneously with its transcription. operon A unit of bacterial gene expression and regulation, including structural genes and control elements in DNA recognized by regulator g

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Chapter 26 The Operon

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    1. Chapter 26 The Operon

    2. 26.1 Introduction coupled transcription/translation – The phenomena in bacteria where translation of the mRNA occurs simultaneously with its transcription. operon – A unit of bacterial gene expression and regulation, including structural genes and control elements in DNA recognized by regulator gene product(s).

    3. 26.1 Introduction trans-acting – A product that can function on any copy of its target DNA. This implies that it is a diffusible protein or RNA. cis-acting – A site that affects the activity only of sequences on its own molecule of DNA (or RNA); this property usually implies that the site does not code for protein.

    4. 26.1 Introduction regulator gene – A gene that codes for a product (typically protein) that controls the expression of other genes (usually at the level of transcription). structural gene – A gene that codes for any RNA or protein product other than a regulator.

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