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Question: Answered & Verified by Expert
In a transcription unit, the promoter is located towards
BiologyMolecular Basis of InheritanceNEET
Options:
  • A 5' end of the structural gene
  • B 3' end of the structural gene
  • C 5' end of the structural gene
  • D 3' end of the coding strand
Solution:
1592 Upvotes Verified Answer
The correct answer is: 5' end of the structural gene
A transcription unit consists of a promoter, a structural gene, and a terminator. The promoter is said to be located towards 5' end (upstream) of the structural gene, the reference is made with respect to the polarity of the coding strand.

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