Official PSEB Class 12 Biology Sample Paper 2025-26

Key Features of the Paper:

This Official PSEB Class 12 Biology Sample Paper is designed with a total of 19 questions and a **Max Marks of 70** over 3 Hours. The structure is comprehensive:

• Section A (20 Marks): Includes a mix of 12 Multiple Choice Questions, 4 Fill in the Blanks, and 4 True/False statements, covering concepts like **Polar Nuclei, Parturition, Oncogenes, and Biocontrol Agents**.
• Section B (20 Marks): Features 10 short answer questions of 2 marks each, with internal choice for 4 questions (Q. 4, 5, 9, 11), requiring knowledge of **Seminal Plasma, Law of Segregation, and Bioreactors**.
• Section C (15 Marks): Includes 5 questions of 3 marks each, covering topics like **DNA Fingerprinting, Industrial Melanism, and Gene Therapy**.
• Section D (15 Marks): Critical 5-mark questions (Q. 17-19) with 100% internal choice, focusing on major areas like **Oogenesis, Chromosomal Abnormalities (Trisomy 21/XXY/XO), and Biodiversity Conservation**.

Use this **Model Question Paper** to test your time management and ensure mastery over **Genetics, Ecology, and Biotechnology** which are central to scoring top marks. View the paper online below instantly!