A - Unity and Diversity
B - Form and Function
C - Interaction and Interdependence
D - Continuity and Change
D1.1 DNA replication
D1.2 Protein synthesis
D1.3 Mutations and gene editing
D2.1 Cell and nuclear division
D2.2 Gene expression (HL)
D2.3 Water potential
D3.1 Reproduction
D3.2 Inheritance
D3.3 Homeostasis
D4.1 Natural selection
D4.2 Sustainability and change
D4.3 Climate change
View a summary cheatsheet for D1.3 Mutations and gene editing
D1.3.1 Gene mutations as structural changes to genes at the molecular level
D1.3.2 Consequences of base substitutions
D1.3.3 Consequences of insertions and deletions
D1.3.4 Causes of gene mutation
D1.3.5 Randomness in mutation
D1.3.6 Consequences of mutation in germ cells and somatic cells
D1.3.7 Mutation as a source of genetic variation
D1.3.8 Gene knockout (HL)
D1.3.9 Use of the CRISPR sequences and the enzyme Cas9 in gene editing (HL)
D1.3.10 Hypotheses to account for conserved or highly conserved sequences in genes (HL)