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BIO NMDCAT Structure of DNA
nmdcat.online July 3, 2026

67. The functional consequence of a mutation that deletes the promoter region of a structural gene is that the gene will

A. Be transcribed continuously at an accelerated rate
B. Fail to be transcribed because RNA polymerase cannot bind
✓
C. Produce a protein consisting entirely of lipids
D. Be converted into an alternative allele

📝 Explanation

Without a functional promoter sequence, RNA polymerase cannot locate or bind the gene, shutting down transcription entirely.

📖 Additional Information

  • Be transcribed continuously at an accelerated rate
  • Fail to be transcribed because RNA polymerase cannot bind
  • Produce a protein consisting entirely of lipids
  • Be converted into an alternative allele

Without a functional promoter sequence, RNA polymerase cannot locate or bind the gene, shutting down transcription entirely.

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