Karnataka 2nd PUC Biology Marks Weightage 2026 Chapter-Wise
The Karnataka 2nd PUC Biology Marks Weightage 2026 shows that chapters like Principles of Inheritance, Molecular Basis of Inheritance, Sexual Reproduction in Flowering Plants, and Human Health and Disease carry the highest marks and should be prioritised for better scores.
Karnataka 2nd PUC Biology Marks Weightage 2026 Chapter-Wise: The Karnataka 2nd PUC Biology 2026 exam places higher weightage on chapters such as Principles of Inheritance, Molecular Basis of Inheritance, Sexual Reproduction in Flowering Plants, and Human Health and Disease, making these topics the most crucial for students to focus on during preparation. Each of these carries 11–13 marks, significantly influencing the overall score. Along with them, chapters like Human Reproduction, Evolution, Microbes in Human Welfare, and Biotechnology also hold moderate weightage and should be revised thoroughly to strengthen core understanding and improve accuracy in application-based questions.
Karnataka 2nd PUC Biology Marks Weightage 2026 Chapter-Wise
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The exam pattern typically includes a mix of very short, short, long-answer questions, and diagram-based questions, testing both conceptual clarity and the ability to present answers precisely. Here’s the chapter-wise weightage of Karnataka 2nd PUC Biology.
Chapter | Marks |
Sexual reproduction in flowering plants | 11 |
Human reproduction | 10 |
Reproductive health | 6 |
Principles of Inheritance | 13 |
Molecular basis of Inheritance | 13 |
Evolution | 7 |
Human health and disease | 11 |
Microbes in Human Welfare | 7 |
Biotechnology: Principles & Processes | 7 |
Biotechnology & its Applications | 6 |
Organism and Population | 6 |
Ecosystem | 4 |
Biodiversity and Conservation | 4 |
Total | 105 |
Karnataka 2nd PUC Biology Marks Weightage 2026: No of Questions
The table below presents the 2026 Karnataka 2nd PUC Biology exam’s question‑by‑question weightage.
Chapter | Part-A (1 mark) | Part-B (2 marks) | Part-C (3 marks) | Part-D (5M marks) | Total Questions |
Sexual reproduction in flowering plants | 1 | 1 | 1 | 1 | 4 |
Human reproduction | 2 | – | 1 | 1 | 4 |
Reproductive health | 1 | 1 | – | 1 | 3 |
Principles of Inheritance | 1 | 1 | – | 2 | 4 |
Molecular basis of Inheritance | 1 | 1 | – | 2 | 4 |
Evolution | 2 | 1 | – | – | 3 |
Human health and disease | 3 | 1 | 1 | – | 5 |
Microbes in Human Welfare | 2 | 1 | 1 | – | 4 |
Biotechnology: Principles & Processes | 2 | – | 1 | – | 3 |
Biotechnology & its Applications | 1 | 1 | 1 | – | 3 |
Organism and Population | 1 | 1 | – | – | 2 |
Ecosystem | – | 1 | – | 1 | 2 |
Biodiversity and Conservation | 2 | – | 1 | – | 3 |
Total | 20/20 | 05/07 | 05/07 | 05/10 | 35/44 |
Knowing the chapter-wise weightage helps students plan their study schedule wisely, concentrate on high-scoring chapters first, and practise more questions from areas that frequently appear in the board exam. This strategic preparation not only boosts confidence but also increases the chances of scoring higher by ensuring time and effort are invested where they matter the most.
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