CBSE Class 12 Biology Expected Question Paper 2025

Updated On: March 25, 2025 02:16 PM

Based on the questions that appeared in the last years from all chapters, CBSE Class 12 Biology Expected Question Paper 2025 has been provided on the page below.

CBSE Class 12 Biology Expected Question Paper 2025: With the CBSE Class 12 Biology board exam approaching on March 22, 2025, students are eager to know the expected question paper pattern for 2025. With the exam approaching rapidly, our experts have released an expected question paper for CBSE Class 12 Biology 2025, spotlighting key topics and question types likely to appear based on past trends and the updated syllabus.

Students should focus on NCERT textbooks, as most questions in the CBSE exam are derived from NCERT concepts. Additionally, solving sample papers and previous years’ question papers will help improve time management and answer accuracy.

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CBSE Class 12 Biology Expected Question Paper 2025

Based on the previous year’s trend, the most common questions asked from each chapter in the CBSE Class 12 Biology Expected Question Paper are provided in the following table:

Chapter Name	Question
Sexual Reproduction in Flowering Plant	Microsporogenesis and Megasporogenesis Structure of Pollen grain Structure of megasporangium and embryo sac Pollination Double fertilization and triple fusion Types of seed
Human Reproduction	Reproductive Structures Gametogenesis Menstrual Cycle Structure of Sperm Blastocyst Parturition
Reproductive Health	Contraceptive devices Assisted Reproductive Technologies MTP
Principle of Inheritance and Variation	ABO Blood grouping Law of Dominance Sex Determination Mendelian Disorder Pedigree Analysis Genetic Disorder
Molecular basis of Inheritance	Double helix DNA Structure DNA Replication Structure of nucleosome Feature of Genetic Code Structure of t-rna Lac Operon DNA Fingerprinting
Evolution	SL Miller Experiment Adaptive Radiation Hardy Weinberg Equilibrium Human Evolution
Human Health and Disease	Infectious and Non-infectious disease Cell mediated and humoral immunity Types of Barriers Structure of Antibody AIDS Cancer
Microbes in Human Welfare	Sewage Treatment Plant Structure of Biogas Bioactive Molecules
Bio-Technology	Recombinant DNA technology Gel Electrophoresis Downstream processing PCR RNA Interference Gene therapy Bt-Cotton Insulin
Organism and Pollution	AGE Pyramids Factors affecting population density Growth models
Ecosystem	Food Chain Decomposition Pyramids Limitations of pyramid
Biodiversity and Conservation	Species Area Relationship Causes of Biodiversity Loss Reasons for Biodiversity Conservation In-situ and Ex-situ Conservation

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