Class 12 Biology — NCERT

NCERT is the NCERT-prescribed textbook for Class 12 Biology in the CBSE curriculum. It contains 13 chapters covering the complete syllabus. BrainWeave offers free AI-powered solutions for every chapter — ask any question by voice or text, in Hindi or English, and get a personalized step-by-step explanation.

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What you'll study in NCERT

Across 13 chapters, Class 12 Biology introduces key concepts including Flower Structure and Parts, Stamen, Microsporangium, and Microsporogenesis, Pollen Grain (Male Gametophyte), Pistil, Megasporangium (Ovule), and Embryo Sac, The Male Reproductive System, The Female Reproductive System, Spermatogenesis, Hormonal Control of Spermatogenesis, Reproductive Health: Concepts and Strategies, Population Explosion and Causes, Birth Control and Ideal Contraceptives, Natural Methods of Contraception, and more. Every chapter below has its own page with a full topic breakdown, practice questions, fun facts, and a free AI tutor that explains each concept in Hindi or English, by voice or text.

All Chapters

Chapter 1

Chapter 1: Sexual Reproduction in flowering Plants

Flower Structure and Parts · Stamen, Microsporangium, and Microsporogenesis · Pollen Grain (Male Gametophyte) · Pistil, Megasporangium (Ovule), and Embryo Sac

8 topics • Free AI tutor →

Chapter 2

Chapter 2: HUMAN REPRODUCTION

The Male Reproductive System · The Female Reproductive System · Spermatogenesis · Hormonal Control of Spermatogenesis

8 topics • Free AI tutor →

Chapter 3

Chapter 3: REPRODUCTIVE HEALTH

Reproductive Health: Concepts and Strategies · Population Explosion and Causes · Birth Control and Ideal Contraceptives · Natural Methods of Contraception

7 topics • Free AI tutor →

Chapter 4

Chapter 4: Principles of Inheritance and Variation

Introduction to Heredity and Variation · Mendel's Experimental Approach · Seven Pairs of Contrasting Traits · Inheritance of One Gene (Monohybrid Cross)

6 topics • Free AI tutor →

Chapter 5

Chapter 5: MOLECULAR BASIS OF INHERITANCE

Structure of a Polynucleotide Chain · Watson and Crick's DNA Double Helix Model · Chargaff's Rules · Central Dogma of Molecular Biology

6 topics • Free AI tutor →

Chapter 6

Chapter 6: Evolution

Origin of Universe and Early Earth · Chemical Evolution and the Miller-Urey Experiment · Early Theories on the Origin of Life · Darwin's Theory of Natural Selection

7 topics • Free AI tutor →

Chapter 7

Chapter 7: Human Health and Disease

Concept of Health and Disease · Pathogens and Common Human Diseases · Bacterial Diseases: Typhoid and Pneumonia · Viral Disease: Common Cold

8 topics • Free AI tutor →

Chapter 8

Chapter 8: MICROBES IN HUMAN WELFARE

Microbes in Household Food Products · Industrial Production of Fermented Beverages · Discovery and Production of Antibiotics · Microbial Production of Chemicals, Enzymes, and Bioactive Molecules

7 topics • Free AI tutor →

Chapter 9

Chapter 9: Biotechnology : Principles and Processes

Core Principles of Modern Biotechnology · Concept of Recombinant DNA (rDNA) · Restriction Enzymes: The Molecular Scissors · Recognition Sequences and Sticky Ends

8 topics • Free AI tutor →

Chapter 10

Chapter 10: BIOTECHNOLOGY AND ITS APPLICATIONS

Genetically Modified Organisms (GMOs) in Agriculture · Bt Toxin for Pest-Resistant Crops · RNA Interference (RNAi) for Pest Resistance · Genetically Engineered Insulin

7 topics • Free AI tutor →

Chapter 11

Chapter 11: Organisms and Populations

Ecology and Levels of Organisation · Population Attributes · Age Pyramids · Population Density

6 topics • Free AI tutor →

Chapter 12

Chapter 12: Ecosystem

Ecosystem Structure and Components · Functional Aspects of an Ecosystem · Ecosystem Productivity · The Process of Decomposition

7 topics • Free AI tutor →

Chapter 13

Chapter 13: Biodiversity and Conservation

Levels of Biodiversity · Global Species Richness Estimates · Taxonomic Distribution of Species · India as a Mega-Diversity Nation

6 topics • Free AI tutor →

Frequently Asked Questions

How many chapters are in Class 12 Biology?

NCERT for Class 12 Biology has 13 chapters. All are covered by BrainWeave's free AI tutor.

Is BrainWeave's Class 12 Biology content free?

Yes. The free Spark plan covers all chapters with daily message limits suitable for homework. Premium features unlock with your own free Gemini API key.

Can I ask Biology questions in Hindi?

Yes — both voice and text chat support Hindi, English, and Hinglish.

Are these solutions aligned with the latest CBSE syllabus?

Yes, BrainWeave follows the current NCERT syllabus and is updated as the syllabus changes.

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