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CBSE Class 12 Biology Exam Pattern
Biology question paper contain totally 30 questions, it is divided into 4 sections.
| Sections | Total marks allotted | Number of questions | Marks per question |
| Section A | 8 marks | 8 | 1 mark per question |
| Section B | 20 marks | 10 | 2 marks per question |
| Section C | 27 marks | 9 | 3 marks per question |
| Section D | 15 marks | 3 | 5 marks per question |
BluePrint - Biology - 2014
| Unit | Marks per chapter |
| Reproduction | 14 |
| Genetics and evolution | 18 |
| Body and human welfare | 14 |
| Biotechnology and its application | 10 |
| Ecology and environment | 14 |
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