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NCERT Solutions for Biology [English] Class 12

CBSE, Karnataka Board PUC Class 12 Biology Solutions Guide

Shaalaa.com provides the CBSE, Karnataka Board PUC Class 12 Biology Solutions Digest. Shaalaa is undoubtedly a site that most of your classmates are using to perform well in exams.

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CBSE, Karnataka Board PUC Class 12 Biology Textbook Solutions

Questions and answers for the Class 12 Biology Textbook are on this page. NCERT Solutions for Class 12 Biology Digest CBSE, Karnataka Board PUC will help students understand the concepts better.


NCERT Solutions for Class 12 Biology Chapterwise List | Class 12 Biology Digest

The answers to the NCERT books are the best study material for students. Listed below are the chapter-wise NCERT Biology Class 12 Solutions CBSE, Karnataka Board PUC.


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NCERT Solutions for Biology [English] Class 12 - Shaalaa.com
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NCERT Class 12 solutions for other subjects

We also provide solutions for other subjects to help you top the exams. These NCERT solutions are curated with respect to the exam pattern and old papers. Find the best questions and solutions here. Click now to access it.

Chapters covered in NCERT Solutions for Biology [English] Class 12

NCERT Solutions for Class 12 Biology (12) 1: Reproduction in Organisms

NCERT Class 12 Biology (12) 1: Reproduction in Organisms exercises

ExerciseNo. of questionsPages
Exercises2017 to 18

NCERT Solutions for Class 12 Biology (12) 2: Sexual Reproduction in Flowering Plants

Concepts covered in Sexual Reproduction in Flowering Plants are Agents of Pollination, Anemophily, Animal-Mediated Pollination (Zoophily), Apomixis, Artificial Hybridization or Artificial Fertilization, Autogamy, Development of Female Gametophyte or Embryo Sac, Double Fertilization and Triple Fusion, Embryo, Endosperm, Flower - a Fascinating Organ of Angiosperms, Geitonogamy, Hydrophily, Megasporogenesis, Microsporogenesis, Outbreeding Devices, Pollen Pistil Interaction, Pollen Products, Pollination, Polyembryony, Post-fertilization Events, Pre-fertilisation in Flowering Plant: Structures and Events, Structure and Development of Anther, Structure and Development of Male Gametophyte, Structure and Development of Ovule, The Seed, Xenogamy.

NCERT Class 12 Biology (12) 2: Sexual Reproduction in Flowering Plants exercises

ExerciseNo. of questionsPages
Exercises2540 to 41

NCERT Solutions for Class 12 Biology (12) 3: Human Reproduction

Concepts covered in Human Reproduction are Fertilization and Implantation, Human Reproduction, Major Events of Menstrual Cycle, Menstrual Cycle (Ovarian Cycle), Menstrual Hygiene, Oogenesis, Overview of Gametogenesis, Overview of The Female Reproductive System, Overview of The Male Reproductive System, Parturition and Lactation, Pregnancy and Embryonic Development, Structure of Sperms.

NCERT Class 12 Biology (12) 3: Human Reproduction exercises

ExerciseNo. of questionsPages
Exercises4255 to 56

NCERT Solutions for Class 12 Biology (12) 4: Reproductive Health

Concepts covered in Reproductive Health are Amniocentesis, Artificial Contraceptive Methods, Assisted Reproductive Technology (ART), Concept of Reproductive Health, Genetic Counselling, Infertility, Medical Termination of Pregnancy (MTP), Methods of Birth Control and Contraceptive Devices, Natural Contraceptive Methods, Population Explosion and Birth Control, Sexually Transmitted Diseases (STD) or Sexually Transmitted Infections (STI).

NCERT Class 12 Biology (12) 4: Reproductive Health exercises

ExerciseNo. of questionsPages
Exercises1866

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NCERT Solutions for Class 12 Biology (12) 5: Principles of Inheritance and Variation

Concepts covered in Principles of Inheritance and Variation are Back Cross and Test Cross, Chromosomal Disorders or Abnormalities, Chromosomal Theory of Inheritance, Dihybrid Cross, Exceptions to Mendel's Principles > Co-Dominance, Exceptions to Mendel's Principles > Incomplete Dominance, Exceptions to Mendel's Principles > Pleiotropy, Gregor Johann Mendel – Father of Genetics, Heredity and Variation, Linkage and Recombination, Mendelian Disorders in Humans, Mendel's Experiments Inheritance, Monohybrid Cross, Mutations, Pedigree Analysis, Polygenic Inheritance, Punnett Square, Sex Determination, Sex Determination in Honey Bees, Sex Determination in Humans, The Law of Dominance, The Law of Independent Assortment, The Law of Segregation (Law of Purity of Gametes).

NCERT Class 12 Biology (12) 5: Principles of Inheritance and Variation exercises

ExerciseNo. of questionsPages
Exercises1993 to 94

NCERT Solutions for Class 12 Biology (12) 6: Molecular Basis of Inheritance

Concepts covered in Molecular Basis of Inheritance are Avery, McCarty and MacLeod’s Experiment, Central Dogma, Characterestic of the Genetic Code, Conservative Replication, Deoxyribonucleic Acid (DNA), Dispersive Replication, DNA Fingerprinting, DNA Replication, Enzymes used in DNA Replication, Genetic Code, Griffith’s Experiment, Human Genome Project, Mechanism of DNA Replication, Meselson and Stahl’s Experiment, Mutations and Genetic Code, Packaging of DNA Helix, Process of Transcription in Bacteria, Process of Transcription in Eukaryotes, Properties of Genetic Material, Regulation of Gene Expression, Reverse Transcription (Teminism), Search for Genetic Material, Semi-Conservative Replication, Structure of Polynucleotide Chain, The Hershey-Chase Experiment, The Lac operon, The RNA World, Transcription, Transcription Unit and the Gene, Translation, tRNA – the Adapter Molecule.

NCERT Class 12 Biology (12) 6: Molecular Basis of Inheritance exercises

ExerciseNo. of questionsPages
Exercises20125

NCERT Solutions for Class 12 Biology (12) 7: Evolution

Concepts covered in Evolution are Adaptive Radiation, Brief Account of Evolution, Evolution, Evolution of Life Forms - a Theory, Evolution Stages, Gene Flow and Genetic Drift, Hardy Weinberg’s Principle, Human Evolution, Micro and Macro Evolution, Modern Synthetic Theory of Evolution, Organic Evolution, Origin and Evolution of Universe and Earth, Theories of Biological Evolution, Theories of Origin of Life.

NCERT Class 12 Biology (12) 7: Evolution exercises

ExerciseNo. of questionsPages
Exercises8142

NCERT Solutions for Class 12 Biology (12) 8: Human Health and Disease

Concepts covered in Human Health and Disease are Addiction and Dependence, Adolescence - Drug and Alcohol Abuse, Allergies (Hypersensitivity), Common Diseases in Human Beings, Effects of Drug and Alcohol, Immunity, Infectious and Non Infectious Disease, Introduction of Drugs and Alcohol Abuse, Introduction of Human Health and Diseases, Maintaining Good Health, Yoga, Excercise, Prevention and Control of Drugs and Alcohol Abuse, Types of Immunity > Innate Immunity, Vaccination and Immunization.

NCERT Class 12 Biology (12) 8: Human Health and Disease exercises

ExerciseNo. of questionsPages
Exercises17164

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NCERT Solutions for Class 12 Biology (12) 9: Strategies for Enhancement in Food Production

Concepts covered in Strategies for Enhancement in Food Production are Introduction of Strategies for Enhancement in Food Production, Plant Breeding, Strategies for Enhancement in Food Production (Questions).

NCERT Class 12 Biology (12) 9: Strategies for Enhancement in Food Production exercises

ExerciseNo. of questionsPages
Exercises14178

NCERT Solutions for Class 12 Biology (12) 10: Microbes in Human Welfare

Concepts covered in Microbes in Human Welfare are Energy Generation, Microbes as Biocontrol Agents, Microbes as Biofertilizers, Microbes in Household Products, Microbes in Human Welfare, Microbes in Industries, Microbes in Production of Biogas, Microbes in Sewage Treatment, Production and Judicious Use.

NCERT Class 12 Biology (12) 10: Microbes in Human Welfare exercises

ExerciseNo. of questionsPages
Exercises17189 to 190

NCERT Solutions for Class 12 Biology (12) 11: Biotechnology : Principles and Processes

Concepts covered in Biotechnology : Principles and Processes are Cloning Vectors, Competent Host (For Transformation with Recombinant DNA), Principles of Biotechnology, Processes of Recombinant DNA Technology.

NCERT Class 12 Biology (12) 11: Biotechnology : Principles and Processes exercises

ExerciseNo. of questionsPages
Exercises18205 to 206

NCERT Solutions for Class 12 Biology (12) 12: Biotechnology and its Applications

Concepts covered in Biotechnology and its Applications are Applications of Biotechnology in Health and Medicine, Biosafety Issues, Ethical Issues, Introduction of Biotechnology and Its Application, Transgenic Animals.

NCERT Class 12 Biology (12) 12: Biotechnology and its Applications exercises

ExerciseNo. of questionsPages
Exercises8215 to 216

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NCERT Solutions for Class 12 Biology (12) 13: Organisms and Populations

Concepts covered in Organisms and Populations are Ecology (Organism, Population, Community and Biome), Introduction of Organisms and Environment, Introduction of Organisms and Populations, Life History Variation, Organisms and Populations (Questions), Population and Ecological Adaptations, Population Attributes, Population Interactions, Responses to Abiotic Factors.

NCERT Class 12 Biology (12) 13: Organisms and Populations exercises

ExerciseNo. of questionsPages
Exercises27239 to 240

NCERT Solutions for Class 12 Biology (12) 14: Ecosystem

Concepts covered in Ecosystem are Concept of Ecosystem, Decomposition, Ecological Pyramids, Ecosystems Patterns, Energy Flow in Ecosystem, Productivity, Structure and Function of an Ecosystem.

NCERT Class 12 Biology (12) 14: Ecosystem exercises

ExerciseNo. of questionsPages
Exercises21256 to 257

NCERT Solutions for Class 12 Biology (12) 15: Biodiversity and Conservation

Concepts covered in Biodiversity and Conservation are Biodiversity, Biodiversity and Its Conservation (Questions), Conservation of Biodiversity, Endangered Organisms, Extinction, Importance of Species Diversity to the Ecosystem, Loss of Biodiversity, Patterns of Biodiversity, Species on Earth and Species in India.

NCERT Class 12 Biology (12) 15: Biodiversity and Conservation exercises

ExerciseNo. of questionsPages
Exercises10268 to 269

NCERT Solutions for Class 12 Biology (12) 16: Environmental Issues

Concepts covered in Environmental Issues are Controlling Vehicular Air Pollution: a Case Study of Delhi, Degradation by Improper Resource Utilisation and Maintenance, Effects of Domestic Sewage and Industrial Effluents on Water, Environmental Issues, Greenhouse Effect and Climate Change, Ozone Depletion in the Stratosphere, Radioactive Waste Management and E-waste, Radioactive Wastes, Solid Wastes.

NCERT Class 12 Biology (12) 16: Environmental Issues exercises

ExerciseNo. of questionsPages
Exercises19286

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NCERT Solutions for Biology [English] Class 12

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