JKBOSE Class 12 Biology
The Ultimate 50 Topic Masterlist
Session 2025-26
Check Other Subjects:
➜ Class 12 Physics
➜ Class 12 Chemistry
Unit VI: Reproduction
- Anatropous Ovule: Detailed structure and labeling. Diagram
- Megasporogenesis: Development of the 7-celled, 8-nucleate embryo sac.
- Double Fertilization: Mechanism of Syngamy and Triple Fusion.
- Gametogenesis: Spermatogenesis vs Oogenesis schemas. Process
- Menstrual Cycle: Hormonal control and phase details. 5 Marks
- ARTs: Concepts of IVF, ZIFT, and GIFT.
Unit VII: Genetics & Evolution
- Mendelian Laws: Segregation and Independent Assortment.
- Incomplete Dominance: The Snapdragon (Antirrhinum) example.
- DNA Double Helix: Watson and Crick model details. Diagram [Image of DNA double helix structure]
- Transcription & Translation: Protein synthesis mechanisms. Process
- Lac Operon: Gene regulation in prokaryotes. 5 Marks
- DNA Fingerprinting: Steps and VNTR concept.
- Evolution: Evidence from Homologous and Analogous organs.
Units VIII & IX: Welfare & Biotechnology
- Plasmodium Life Cycle: Malarial parasite stages. Diagram [Image of life cycle of Plasmodium]
- Antibody Structure: H2L2 model representation. [Image of antibody molecule structure]
- Sewage Treatment: Primary vs Secondary (Biological) treatment.
- pBR322 Plasmid: Selectable markers and cloning sites. Diagram [Image of pBR322 plasmid diagram]
- PCR: Denaturation, Annealing, and Extension. Process
- Genetically Engineered Insulin: Steps in producing Humulin.
Unit X: Ecology & Environment
- Population Growth: Exponential vs Logistic (Sigmoid) curves.
- Ecological Pyramids: Pyramid of Energy (Always upright).
- Biodiversity Conservation: In-situ vs Ex-situ methods.
- Environmental Issues: Global Warming and Ozone depletion.
Asterisk Classes: Expert Strategy
- Diagrams: In Biology, a neat diagram with at least 4 correct labels can fetch you 50% marks even if your theory is brief.
- Comparison Tables: For “Difference between” questions, always use a table. It makes your answer easy to read for the evaluator.
- Terminology: Underline biological terms (e.g., Pachytene, Splicing, Cry genes) to highlight your knowledge.