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D1.2.13 (HL)—Initiation of transcription at promoter

Promoters are upstream non-coding DNA regions that position RNA polymerase and help initiate regulated transcription of a gene in cells.

Syllabus
First assessment 2025
Objective
D1.2.13
Level
HL

Exam analysis

Chance of appearing1%of analysed past papers
Latest appearanceMay 2024
Most common paperPaper2
Typical marks2

Common command terms

  • Explain

Recent exam appearances

May 2024Paper2 ["HL"] · TZ14(c)[ 2 ]D1.2.13 (HL)—Initiation of transcription at promoter
Practice this objective

Coverage 2024–2024 · Updated 16 Jul 2026

Concept essentials

  • Promoters are non-coding DNA sequences linked to transcription start sites.
  • RNA polymerase or transcription factors bind at promoter regions.
  • Promoters help determine where transcription begins.
  • Promoter activity contributes to regulation of gene expression.
ConceptIB Biology HL