IB Biology Topic D2.2 Gene Expression (HL) covers syllabus content as part of Topic D2: Cells under Theme D: Continuity and Change. Use these notes, questionbank, videos, flashcards, and lessons to review the topic, practise exam questions, and move between notes, videos, flashcards, and lessons where available.
D2.2 Gene expression is part of Topic D2: Cells under Theme D: Continuity and Change.
What this topic covers
D2.2.1 Gene expression
D2.2.2 Regulation of transcription by proteins
D2.2.3 Control of the degradation of mRNA
D2.2.4 Epigenesis
D2.2.5 Differences between the genome, transcriptome and proteome of individual cells
D2.2.6 Methylation of the promoter and histones in nucleosomes as examples of epigenetic tags
D2.2.7 Epigenetic inheritance through heritable changes to gene expression
D2.2.8 Examples of environmental effects on gene expression in cells and organisms
D2.2.9 Consequences of removal of most but not all epigenetic tags from the ovum and sperm
D2.2.10 Monozygotic twin studies
D2.2.11 External factors impacting the pattern of gene expression