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D1.2 Protein synthesis

Protein synthesis links DNA information to functional proteins through transcription, RNA processing, translation, genetic-code reading and post-translational modification in cells.

Syllabus
First assessment 2025
Topic
D1.2
Level
SL

What you’ll learn

11 learning objectives

Choose one objective for a focused lesson, or study the complete topic.

Exam analysis

An aggregate view of how the complete D1.2 Protein synthesis appears across past papers.

Chance of appearing29%of analysed past papers
Latest appearanceNovember 2025
Most common paperPaper1

Most tested objectives

  1. D1.2.8—Genetic code features10 questions
  2. D1.2.5—Translation7 questions
  3. D1.2.1—Transcription6 questions

Common question formats

  • Process explanation
  • Definition or recall
  • Calculation
  • Diagram interpretation
  • Data analysis
  • Comparison
  • Structured response

Exam question appearances

November 2025Paper1A ["SL"] · TZ16[ 1 ]D1.2.8—Genetic code features
November 2025Paper2 ["SL"] · TZ12(c)[ 2 ]D1.2.10—Elongation of polypeptide
November 2025Paper2 ["SL"] · TZ12(b)[ 2 ]D1.2.6—Roles in translation
May 2025Paper2 ["SL"] · TZ37(b)[ 4 ]D1.2.1—Transcription
May 2025Paper1A ["SL"] · TZ27[ 1 ]D1.2.9—Using genetic code table

Coverage 2010–2025 · Updated 16 Jul 2026

Study checklistD1.2 Protein synthesis