The textbook is the foundational resource for CBSE board exams and competitive medical entrance tests like NEET . For the 2025-26 academic session, the syllabus is structured into 5 units and 13 chapters , emphasizing conceptual clarity and diagrams . Syllabus and Unit-wise Weightage
Biotechnology: Principles and Processes (Genetic engineering, recombinant DNA). NCERT Class 12 Biology
The following chapters are included in the latest NCERT edition: The textbook is the foundational resource for CBSE
Organisms and Populations (Population growth, interactions, adaptations). adaptations). : For higher-level application questions
: For higher-level application questions, students often use the NCERT Exemplar Book . NCERT Class 12 Biology Book PDF Free Download (2025-26)