IB Biology D2.2 Definitions

This page contains our IB Biology definitions for D2.2. By learning each one of these definitions, you will fully cover the content for IB Biology 'Gene expression'.

All Topic 2 Sub-topics (HL)A2.1: Origins of cells A2.2: Cell Structure (HL)A2.2: Further cell structure (HL)A2.3: Viruses B2.1: Membranes And Transport (HL)B2.1: Further membranes and transport B2.2: Organelles & Compartmentalisation (HL)B2.2: Further organelles B2.3: Cell Specialisation (HL)B2.3: Further cell specialisation (HL)C2.1: Chemical signalling C2.2: Neural Signalling (HL)C2.2: Further neural signalling D2.1: Cell Division (HL)D2.1: Cell cycle (HL)D2.2: Gene expression D2.3: Water Potential (HL)D2.3: Further water potential

epigenetics

The study of epigenomes

epigenome

A person's pattern of gene expression

gene expression

The conversion of genes to proteins to express the gene's coded characteristic

methylation

The addition of methyl groups to DNA to prevent transcription

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