CBSE-CLASS-XII
Biology Analysis
Comprehensive breakdown of 125 chapters with 1081 previous year questions. Explore priority-sorted content and weightage analytics.
125
Chapters
1081
Total Questions
PYQ
Years Covered
accountancy agriculture air-conditioning-and-refrigeration applied-mathematics artificial-intelligence automotive banking beauty-and-wellness biology biotechnology business-administration business-studies carnatic-music-melodic-instruments carnatic-music-percussion-instruments carnatic-music-vocal chemistry commercial-art computer-awareness computer-science cost-accounting data-science design design-thinking-and-innovation early-childhood-care-and-education economics electrical-technology electronics-technology engineering-graphics english english-core english-elective entrepreneurship environmental-sciences environmental-studies fashion-studies financial-markets-management food-nutrition food-production french front-office-operations general-aptitude geography geospatial-technology graphics health-care hindi-elective hindustani-music-melodic-instruments hindustani-music-percussion-instruments history home-science horticulture informatics-practice information-technology insurance kathak-dance knowledge-traditions-and-practices-of-india legal-studies marketing mass-media mathematics painting physical-activity-trainer physical-education physics political-science psychology retail sanskrit sociology typography-and-computer-applications yoga ह-द
Chapters
Sorted by Questions high Yield
Biotechnology
High-Yield Trend
12
2026 71
2025 16
2024 Topics 0
Questions 99
high Yield
Human Health And Disease
High-Yield Trend
9
2026 42
2025 8
2024 Topics 0
Questions 59
high Yield
Human Reproduction
High-Yield Trend
5
2026 44
2025 8
2024 Topics 0
Questions 57
high Yield
Principles Of Inheritance And Variation
High-Yield Trend
5
2026 51
2025 1
2024 Topics 0
Questions 57
high Yield
Structure And Development Of Seed And Fruit
High-Yield Trend
56
2024 Topics 0
Questions 56
high Yield
Molecular Basis Of Inheritance
High-Yield Trend
5
2026 42
2025 5
2024 Topics 0
Questions 52
high Yield
Biogas Plant
High-Yield Trend
46
2024 Topics 0
Questions 46
high Yield
Evolution
High-Yield Trend
7
2026 25
2025 7
2024 Topics 0
Questions 39
high Yield
Genetics
High-Yield Trend
12
2026 10
2025 12
2024 Topics 0
Questions 34
high Yield
Sexual Reproduction In Flowering Plants
High-Yield Trend
6
2026 25
2025 2
2024 Topics 0
Questions 33
high Yield
Assisted Reproductive Technology
High-Yield Trend
30
2024 Topics 0
Questions 30
high Yield
Microbes In Human Welfare
High-Yield Trend
4
2026 23
2025 1
2024 Topics 0
Questions 28
medium Yield
Ecosystem
High-Yield Trend
4
2026 10
2025 8
2024 Topics 0
Questions 22
medium Yield
Biodiversity And Conservation
High-Yield Trend
4
2026 12
2025 4
2024 Topics 0
Questions 20
medium Yield
Ecology
High-Yield Trend
6
2026 3
2025 10
2024 Topics 0
Questions 19
medium Yield
Organisms And Populations
High-Yield Trend
4
2026 12
2025 2
2024 Topics 0
Questions 18
medium Yield
Transcription
High-Yield Trend
4
2025 10
2024 Topics 0
Questions 14
medium Yield
Reproduction In Plants
High-Yield Trend
3
2026 3
2025 7
2024 Topics 0
Questions 13
low Yield
Applications Of Biotechnology
High-Yield Trend
12
2025 Topics 0
Questions 12
low Yield
Molecular Biology
High-Yield Trend
11
2025 1
2024 Topics 0
Questions 12
low Yield
Pollination
High-Yield Trend
8
2025 4
2024 Topics 0
Questions 12
low Yield
The Dna
High-Yield Trend
12
2024 Topics 0
Questions 12
low Yield
Inheritance Of Two Genes
High-Yield Trend
11
2024 Topics 0
Questions 11
low Yield
A Brief Account Of Evolution
High-Yield Trend
10
2024 Topics 0
Questions 10
low Yield
Blood
High-Yield Trend
2
2025 8
2024 Topics 0
Questions 10
low Yield
Immunology
High-Yield Trend
3
2026 5
2025 2
2024 Topics 0
Questions 10
low Yield
Reproductive Health
High-Yield Trend
2
2026 4
2025 4
2024 Topics 0
Questions 10
low Yield
Ecology And Environment
High-Yield Trend
7
2025 2
2024 Topics 0
Questions 9
low Yield
Origin And Evolution Of Man
High-Yield Trend
9
2024 Topics 0
Questions 9
low Yield
Genetic Engineering And Biotechnology
High-Yield Trend
1
2025 7
2024 Topics 0
Questions 8
low Yield
Human Body
High-Yield Trend
1
2025 7
2024 Topics 0
Questions 8
low Yield
Menstrual Cycle
High-Yield Trend
1
2025 7
2024 Topics 0
Questions 8
low Yield
Reproduction In Organisms
High-Yield Trend
3
2025 5
2024 Topics 0
Questions 8
low Yield
Diseases
High-Yield Trend
7
2024 Topics 0
Questions 7
low Yield
Diseases And Causes
High-Yield Trend
7
2024 Topics 0
Questions 7
low Yield
Drugs
High-Yield Trend
7
2024 Topics 0
Questions 7
low Yield
Inheritance Of One Gene
High-Yield Trend
7
2024 Topics 0
Questions 7
low Yield
Genetics And Evolution
High-Yield Trend
6
2024 Topics 0
Questions 6
low Yield
Inheritance Patterns
High-Yield Trend
6
2025 Topics 0
Questions 6
low Yield
Reproductive Health Problems And Strategies
High-Yield Trend
6
2025 Topics 0
Questions 6
low Yield
Biodiversity
High-Yield Trend
5
2025 Topics 0
Questions 5
low Yield
Human Development
High-Yield Trend
5
2024 Topics 0
Questions 5
low Yield
Replication
High-Yield Trend
5
2024 Topics 0
Questions 5
low Yield
Antibiotics
High-Yield Trend
4
2024 Topics 0
Questions 4
low Yield
Biological Evolution
High-Yield Trend
4
2024 Topics 0
Questions 4
low Yield
Immunity
High-Yield Trend
3
2025 1
2024 Topics 0
Questions 4
low Yield
Microbiology
High-Yield Trend
4
2026 Topics 0
Questions 4
low Yield
Mutation
High-Yield Trend
4
2024 Topics 0
Questions 4
low Yield
Origin Of Life
High-Yield Trend
4
2024 Topics 0
Questions 4
low Yield
Population Ecology
High-Yield Trend
4
2024 Topics 0
Questions 4
low Yield
Recombinant Dna Technology And Applications
High-Yield Trend
4
2024 Topics 0
Questions 4
low Yield
Reproduction
High-Yield Trend
4
2024 Topics 0
Questions 4
low Yield
Rna World
High-Yield Trend
4
2024 Topics 0
Questions 4
low Yield
Why Do We Fall Ill
High-Yield Trend
4
2024 Topics 0
Questions 4
low Yield
Apomixis And Polyembryony
High-Yield Trend
3
2024 Topics 0
Questions 3
low Yield
Cell Structure And Organelles
High-Yield Trend
3
2024 Topics 0
Questions 3
low Yield
Environment And Natural Resources
High-Yield Trend
3
2024 Topics 0
Questions 3
low Yield
General Physiology
High-Yield Trend
3
2026 Topics 0
Questions 3
low Yield
Genetic Code
High-Yield Trend
3
2024 Topics 0
Questions 3
low Yield
Genetic Disorders
High-Yield Trend
3
2024 Topics 0
Questions 3
low Yield
Medicinal Plants
High-Yield Trend
3
2024 Topics 0
Questions 3
low Yield
Mendel S Laws Of Inheritance
High-Yield Trend
3
2024 Topics 0
Questions 3
low Yield
Parasitology
High-Yield Trend
3
2026 Topics 0
Questions 3
low Yield
Sex Determination
High-Yield Trend
2
2025 1
2024 Topics 0
Questions 3
low Yield
Social Evolution
High-Yield Trend
3
2024 Topics 0
Questions 3
low Yield
The Female Reproductive System
High-Yield Trend
2
2026 1
2024 Topics 0
Questions 3
low Yield
The Food Chain
High-Yield Trend
3
2024 Topics 0
Questions 3
low Yield
The Search For Genetic Material
High-Yield Trend
3
2024 Topics 0
Questions 3
low Yield
Translation
High-Yield Trend
3
2024 Topics 0
Questions 3
low Yield
Types Of Cells
High-Yield Trend
3
2024 Topics 0
Questions 3
low Yield
What Is Adaptive Radiation
High-Yield Trend
3
2024 Topics 0
Questions 3
low Yield
Biomolecules
High-Yield Trend
2
2024 Topics 0
Questions 2
low Yield
Coordination In Plants
High-Yield Trend
2
2024 Topics 0
Questions 2
low Yield
Development Of Male And Female Gametophyte
High-Yield Trend
2
2025 Topics 0
Questions 2
low Yield
Diversity In The Living World
High-Yield Trend
2
2024 Topics 0
Questions 2
low Yield
Endocrinology
High-Yield Trend
2
2026 Topics 0
Questions 2
low Yield
Environment
High-Yield Trend
2
2024 Topics 0
Questions 2
low Yield
Evolution Of Life Forms A Theory
High-Yield Trend
2
2024 Topics 0
Questions 2
low Yield
Hardy Weinberg Principle
High-Yield Trend
1
2025 1
2024 Topics 0
Questions 2
low Yield
Human Anatomy
High-Yield Trend
2
2025 Topics 0
Questions 2
low Yield
Inheritance Of Haemophilia
High-Yield Trend
2
2024 Topics 0
Questions 2
low Yield
Mendelian Genetics
High-Yield Trend
2
2024 Topics 0
Questions 2
low Yield
Morphology Of Flowering Plants
High-Yield Trend
2
2025 Topics 0
Questions 2
low Yield
Nucleic Acids And Nucleotides
High-Yield Trend
2
2024 Topics 0
Questions 2
low Yield
Pathogens
High-Yield Trend
2
2024 Topics 0
Questions 2
low Yield
Pcr
High-Yield Trend
2
2024 Topics 0
Questions 2
low Yield
Pcr And Thermostable Dna Polymerase
High-Yield Trend
2
2025 Topics 0
Questions 2
low Yield
Plant Kingdom
High-Yield Trend
2
2024 Topics 0
Questions 2
low Yield
Plant Physiology Biochemistry
High-Yield Trend
2
2024 Topics 0
Questions 2
low Yield
Pleiotropy
High-Yield Trend
2
2024 Topics 0
Questions 2
low Yield
Polygenic Inheritance
High-Yield Trend
2
2024 Topics 0
Questions 2
low Yield
Population Dynamics
High-Yield Trend
2
2024 Topics 0
Questions 2
low Yield
Proteins
High-Yield Trend
2
2024 Topics 0
Questions 2
low Yield
Regulation Of Gene Expression
High-Yield Trend
1
2025 1
2024 Topics 0
Questions 2
low Yield
Sexual Reproduction
High-Yield Trend
1
2025 1
2024 Topics 0
Questions 2
low Yield
Structure Of Dna And Rna
High-Yield Trend
2
2024 Topics 0
Questions 2
low Yield
Wastewater Management
High-Yield Trend
2
2024 Topics 0
Questions 2
low Yield
Bacteria Archea Virus And Their Broad Classification
High-Yield Trend
1
2024 Topics 0
Questions 1
low Yield
Blood Group Inheritance
High-Yield Trend
1
2025 Topics 0
Questions 1
low Yield
Dna Replication
High-Yield Trend
1
2025 Topics 0
Questions 1
low Yield
Drug Testing
High-Yield Trend
1
2025 Topics 0
Questions 1
low Yield
Ecological Pyramids
High-Yield Trend
1
2025 Topics 0
Questions 1
low Yield
Ecosystems And Biodiversity
High-Yield Trend
1
2025 Topics 0
Questions 1
low Yield
Enzymes
High-Yield Trend
1
2025 Topics 0
Questions 1
low Yield
Eukaryotic Transcription
High-Yield Trend
1
2025 Topics 0
Questions 1
low Yield
Fertilisation And Implantation
High-Yield Trend
1
2024 Topics 0
Questions 1
low Yield
Flower A Fascinating Organ Of Angiosperms
High-Yield Trend
1
2024 Topics 0
Questions 1
low Yield
Glucose
High-Yield Trend
1
2024 Topics 0
Questions 1
low Yield
Human Genome
High-Yield Trend
1
2024 Topics 0
Questions 1
low Yield
Immune System
High-Yield Trend
1
2025 Topics 0
Questions 1
low Yield
Industrial Melanism In Moths
High-Yield Trend
1
2025 Topics 0
Questions 1
low Yield
Microbial Fermentation
High-Yield Trend
1
2025 Topics 0
Questions 1
low Yield
Natural Selection
High-Yield Trend
1
2025 Topics 0
Questions 1
low Yield
Non Biodegradable Pollutant
High-Yield Trend
1
2024 Topics 0
Questions 1
low Yield
Nucleic Acids
High-Yield Trend
1
2024 Topics 0
Questions 1
low Yield
Plant Evolution
High-Yield Trend
1
2025 Topics 0
Questions 1
low Yield
Population Stabilisation And Birth Control
High-Yield Trend
1
2024 Topics 0
Questions 1
low Yield
Principles Of Mendelian Inheritance
High-Yield Trend
1
2025 Topics 0
Questions 1
low Yield
Product Life Cycle
High-Yield Trend
1
2025 Topics 0
Questions 1
low Yield
Respiratory Infections
High-Yield Trend
1
2025 Topics 0
Questions 1
low Yield
Rna Transcription
High-Yield Trend
1
2025 Topics 0
Questions 1
low Yield
Soils
High-Yield Trend
1
2025 Topics 0
Questions 1
low Yield
Spermatogenesis
High-Yield Trend
1
2025 Topics 0
Questions 1
low Yield
Strategies For Enhancement In Food Production
High-Yield Trend
1
2026 Topics 0
Questions 1
low Yield
The Male Reproductive System
High-Yield Trend
1
2024 Topics 0
Questions 1