With the help of a schematic diagram, explain the location and the role of the following in a transcription unit:

Promoter, Structural gene, Terminator.



Figure. Schematic structureof a transcription unit


1. Promoter- It is a DNA sequence that provides a binding site for RNA polymerase for the initiation of transcription.


2. Structural gene- It codes for enzymes or proteins for structural functions.


3. Terminator-It usually defines the end of the transcription process.


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