Punjab Board Class 12 Biology Syllabus 2026-27

Exam scheme

Time 3 hours. Theory 70 + practical 25 + internal 5 = 100.

Unit	Title	Marks
I	Reproduction	16
II	Genetics and Evolution	18
III	Biology and Human Welfare	12
IV	Biotechnology and its Applications	10
V	Ecology and Environment	14

Chapters

1. Sexual Reproduction in Flowering Plants
2. Human Reproduction
3. Reproductive Health
4. Principles of Inheritance and Variation
5. Molecular Basis of Inheritance
6. Evolution
7. Human Health and Diseases
8. Microbes in Human Welfare
9. Biotechnology — Principles and Processes
10. Biotechnology and its Applications
11. Organisms and Populations
12. Ecosystem
13. Biodiversity and its Conservation