CISCE Class 12 Biology - Paper 1 (theory) Question Papers 2026

The ISC Class 12 Biology Paper 1 (Theory) question paper aims to assess students’ in-depth understanding of biological concepts and their ability to apply knowledge in various contexts. It includes key topics such as genetics, evolution, ecology, human physiology, plant physiology, and biotechnology. The paper consists of a combination of objective questions, short-answer questions, long-answer questions, and diagram-based exercises, testing both conceptual clarity and analytical skills. Students are expected to demonstrate critical thinking, precise interpretation of diagrams, and the ability to solve complex biological problems. Effective time management, focused preparation, and thorough revision of core topics are essential for performing well in this examination.