Class 12 (Science Stream)

Biology Notes & Syllabus

Botany | Zoology | Genetics | Human Biology | Applied Biology

Here you can find the complete list of chapters for the Class 12 Biology subject based on the latest NEB/CDC curriculum. This subject is divided into Botany and Zoology sections.
Start browsing chapters below or download the official syllabus.

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Class 12 Biology study resources and notes
NEB Syllabus

Class 12 Biology Chapters

Part A: Botany (Plant Science)

Unit 1: Plant Anatomy and Physiology (Tissues, Photosynthesis, Respiration)

Unit 2: Plant Life Cycle (Reproduction in Plants)

Unit 3: Ecology and Environment (Ecosystem, Biogeochemical Cycles)

Unit 4: Biotechnology (Recombinant DNA, Tissue Culture)

Unit 5: Economic Botany and Bioprospecting

Unit 6: Application of Plant Science (Forestry, Agriculture)

Part B: Zoology (Animal Science)

Unit 7: Animal Tissues and Organs (Epithelium, Connective Tissue)

Unit 8: Human Biology (Digestion, Respiration, Excretion, Circulation)

Unit 9: Human Reproduction and Embryonic Development

Unit 10: Genetics (Mendelian Principles, Chromosomal Theory)

Unit 11: Evolution (Theories of Evolution, Origin of Life)

Unit 12: Applied Zoology and Health (Diseases, Animal Husbandry)

Part C: Advanced Topics and Applications (Units 13-15)

Unit 13: Molecular Biology (DNA Replication, Transcription, Translation)

Unit 14: Immunology and Human Diseases

Unit 15: Current Trends in Biology (Genomics, Proteomics, Bioinformatics)