Question
Draw a labelled schematic structure of a transcription unit. Explain the function of each component in the unit in the process of transcription.

Answer

Transcription unit: The transcription unit of DNA contains three regions in the DNA:

  1. The promoter: It is the binding site for RNA polymerase for initiation of transcription.

  2. The structural gene: It codes for enzyme or protein for structural functions.

  3. The terminator: It is the region where transcription ends.

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