Transcription makes mRNA. mRNA can be processed (ie. capped and spliced). Stability is based on the rRNAs ________ _______.
A repressor-binding site overlaps the promoter. When the repressor protein binds, RNA polymerase cannot initiate transcription and no mRNA is produced.
promoter and recruits RNA polymerase to initiate transcription.
The regulatory site is far away from the promoter.
A transcription activator (blue) binds the regulatory site, promoter and RNA Pol forming a DNA loop .
Transcription is activated.
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