Rajasthan Board Class 12 Biology Syllabus 2026-27

Exam scheme

Subject code 42. Students must pass theory and practical separately.

Paper	Time	Paper marks	Sessional	Total
Theory	3 hours 15 minutes	56	14	70
Practical	4 hours	30	0	30

Unit 6 — Reproduction

Chapter	Topic	Marks
1	Sexual Reproduction in Flowering Plants	5
2	Human Reproduction	4
3	Reproductive Health	2

Unit 7 — Genetics and Evolution

Chapter	Topic	Marks
4	Principles of Inheritance and Variation	5
5	Molecular Basis of Inheritance	6
6	Evolution	3

Unit 8 — Biology in Human Welfare

Chapter	Topic	Marks
7	Human Health and Disease	6
8	Microbes in Human Welfare	5

Unit 9 — Biotechnology

Chapter	Topic	Marks
9	Biotechnology: Principles and Processes	4
10	Biotechnology and its Applications	4

Unit 10 — Ecology

Chapter	Topic	Marks
11	Organisms and Populations	4
12	Ecosystem	5
13	Biodiversity and Conservation	3

Time 4 hours. Evaluation includes major and minor exercises in botany and zoology, plus record and viva as listed in the official PDF.

Biology — NCERT Class 12, published under copyright.

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