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D2.2.1 (HL)—Gene expression mechanism

Gene expression uses transcription and translation to convert DNA information into proteins that influence phenotype and cellular behaviour in organisms.

Syllabus
First assessment 2025
Objective
D2.2.1
Level
HL

Concept essentials

  • DNA information affects phenotype through gene products.
  • mRNA is produced by transcription from a gene.
  • mRNA can be translated into a polypeptide.
  • Measuring mRNA can indicate expression of the protein-coding gene.
ConceptIB Biology HL