Which one of the following is not a part of a transcription unit in DNA?
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Which one of the following is not a part of a transcription unit in DNA?
✓ Correct answer: a) The inducer
ExplanationA transcription unit in DNA consists of three main parts:1. Promoter – initiation site for RNA polymerase2. Structural gene – the region that is transcribed3. Terminator – signals the end of transcription The inducer is not a part of the DNA transcription unit.It is usually a small molecule (like lactose in lac operon) that regulates gene expression, not a DNA sequence.So, the correct answer is A.
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