D2.2.4 (HL)—Epigenesis
Epigenesis produces differentiated cell states by changing gene activity patterns without altering the underlying DNA base sequence during development processes.
- Syllabus
- First assessment 2025
- Objective
- D2.2.4
- Level
- HL
Concept essentials
- Differentiated cells can contain the same genome but express different genes.
- Epigenesis creates stable patterns of gene activity during development.
- Epigenetic regulation does not require a DNA base-sequence change.
- Cell type depends on which genes are active or inactive.
ConceptIB Biology HL