IB DP Biology D2.2 Gene Expression - Condensed Topic Notes 2026

IB DP Biology Condensed Topic Notes Bundle: Section D Continuity and Change 2026

IB DP Biology: Quick Study Bundle Section D Continuity and Change – Condensed Revision Outline A helpful, exam-ready resource for teachers and students. This abridged and structured revision guide bundle is designed to help IB DP Biology students revising Section D: Continuity and Change by condensing key syllabus content into a clear, accessible format. It provides full coverage of required concepts while simplifying complex processes, making it an effective tool for both classroom teaching and independent study. Why This Resource? • Covers Every Assessment Statement – Aligned with the IB Biology syllabus to ensure all required content from Section D is included. • Structured for Easy Review – Information is organised into clear, manageable sections to support rapid comprehension and efficient exam revision. • Interactive and Engaging – Digital checkboxes allow students to track progress as they complete each revision section. • Time-Saving for Teachers – Ready to use as a teaching aid, revision sheet, or exam preparation guide with minimal preparation needed. What Is Inside? DNA Replication – Enzymes, replication forks, leading and lagging strands, and fidelity mechanisms. Protein Synthesis – Transcription, RNA processing, translation, and gene regulation. Mutation and Gene Editing – Types of mutation, causes, CRISPR basics, and repair. Cell and Nuclear Division – Mitosis, meiosis, checkpoints, genetic variation, and regulation. Gene Expression – Control of transcription and translation, epigenetics, and development. Water Potential – Solute and pressure potentials, Ψ equation, osmosis, and plant examples. Reproduction – Asexual and sexual reproduction, gametogenesis, and embryonic development. Inheritance – Mendelian and non-Mendelian patterns, Punnett squares, and pedigree analysis. Homeostasis – Feedback systems, thermoregulation, osmoregulation, and control mechanisms. Natural Selection – Variation, selection pressures, adaptation, and evidence. Stability and Change – Systems stability, disturbances, and ecosystem responses. Climate Change – Greenhouse effect, evidence, impacts, and mitigation strategies. List of essential keywords and definitions for Section D topics. This resource is: • Concise and Effective – Reduces information overload while reinforcing essential ideas. • Exam-Focused – Covers core IB DP Biology content in an assessment-ready format. • Versatile Use – Suitable for daily lessons, revision sessions, flipped classrooms, and exam preparation. Use this revision bundle to strengthen your teaching resources and provide students with a focused, structured approach to mastering the Continuity and Change section of the IB DP Biology course.