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HBSE Class 12th Biology Syllabus 2026: Section-Wise Topics Explained

• Updated on 6 Feb, 2026 by Dina Bandhu

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HBSE Class 12th Biology Syllabus 2026 is designed to provide students with a detailed understanding of living organisms and life processes. It covers key areas such as Reproduction, Genetics and Evolution, Human health and Welfare, Biotechnology, and Ecology and Environment.

 

Table of Contents
  1. HBSE Class 12th Biology Syllabus 2026
  2. HBSE Class 12th Biology Syllabus 2026: Conclusion

 

HBSE Class 12th Biology Syllabus 2026

HBSE Class 12th Biology Syllabus 2026, combines Theoretical concepts with Practical experiments, helping students develop scientific knowledge, observation skills, and an understanding of biological applications in everyday life and environmental conservation.

Unit

Chapter

Key Contents

Marks

Unit I

Reproduction

Sexual reproduction in flowering plants, human reproduction, reproductive health

16

Unit II

Genetics and Evolution

Principles of inheritance and variation, molecular basis of inheritance, evolution

20

Unit III

Biology and Human Welfare

Human health and disease, strategies for enhancement in food production, microbes in human welfare

12

Unit IV

Biotechnology and Its Applications

Biotechnology principles and processes, applications in health and agriculture

10

Unit V

Ecology and Environment

Organisms and populations, ecosystems, biodiversity and conservation, environmental issues

12

External Written Examination

—

Questions from all units

70

Practical Examination

—

Experiments, slides, spotting, viva, record work

20

Internal Assessment

—

Unit tests, assignments, projects, attendance

10

Grand Total

—

Theory + Practical + Internal Assessment

100

 

HBSE Class 12th Biology Syllabus 2026: Conclusion

Overall, HBSE Class 12 Biology Syllabus 2026 offers a well-structured study of life sciences by integrating theory with practical work. Through topics such as reproduction, genetics, biotechnology, and ecology, it builds conceptual clarity and scientific reasoning. Practical examinations and internal assessment further strengthen observational and analytical skills, preparing students for higher studies and careers in biological and medical sciences.

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