CBSE Class 12 Biology – Free Resources 2026–27
Subject Code 044 | NCERT | Detailed Notes, Concept Maps, Diagrams, MCQs, HOTS & Practical Preparation
CBSE’s 2026–27 Class XII Biology theory paper is 70 marks across five units: Reproduction (16), Genetics and Evolution (20), Biology and Human Welfare (12), Biotechnology and its Applications (12), and Ecology and Environment (10). The practical component carries 30 marks. citeturn1view0
Unit VI – Reproduction
Unit VII – Genetics and Evolution
Unit VIII – Biology and Human Welfare
Unit IX – Biotechnology and its Applications
Unit X – Ecology and Environment
Formative Topic – Environmental Issues
CBSE identifies Environmental Issues for formative reinforcement rather than summative assessment. Topics include air pollution, water pollution, solid waste, agro-chemicals, radioactive wastes, greenhouse effect/global warming, ozone depletion, improper resource utilisation and deforestation. citeturn1view0
🧪 Practical Preparation
The 2026–27 practical component is 30 marks. Prescribed work includes pollen germination, quadrat studies of plant populations, onion root-tip mitosis, DNA isolation, spotting and project/viva components. citeturn1view0
What Every Chapter Page Contains
- Detailed chapter-specific explanation
- Visual concept map / process flow
- Worked biological example
- Chapter-specific MCQs with answers
- HOTS and competency questions
- Short and long-answer practice
- Diagram practice
- Quick revision
- CBSE-oriented exam guidance
Important: These pages are designed as study resources, not generic placeholder templates. The diagrams, examples and questions are tied to the particular Biology chapter.
Official CBSE Reference
CBSE Biology 2026–27 Curriculum – Official PDF · CBSE Class XII 2026–27 Sample Question Papers & Marking Schemes. citeturn1view0turn0search0