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CBSE- Grade 12 Biology Syllabus


Students having trouble with tough biology chapters who wish to score better in their biology exams can refer to our free NCERT solutions which give students all that is necessary to prepare for their examinations and solve various math related problems. All that students need to do is go through these CBSE Class 12 biology syllabus and NCERT books and solve the questions and exercises given in each chapter. Students can be assured of positive results. NCERT text books can be very helpful for students in achieving maximum marks in their examinations.

Some of the topics covered are:


  1. Reproduction in Organism</strong
  2. Sexual Reproduction in Flowering Plants
  3. Human Reproduction
  4. Reproductive Health
  5. Principle of Inheritence and Variation
  6. Molecular Basis of Inheritence
  7. Evolution
  8. Human Health and Disease
  9. Strategies for Enhancement in Food Production
  10. Microbes in Human Welfare
  11. Biotechnology: Principle and Processes
  12. Biotechnology and Its Application
  13. Organisms and Populations
  14. Ecosystem
  15. Biodiversity and Conservation
  16. Environmental Issues

1.A. Asexual reproduction
1.B. Sexual reproduction

2.A. Flower- a fascinating organ of angiosperm
2.B. Pre-fertilisaiton- structures and events: stamen, microsporangium and pollen grain
2.C. The pistil, megasporangium (ovule) and embryo sac
2.D. Pollination
2.E. Agents of pollination
2.F. Outbreedings devices and pollen-Pistil interaction
2.G. Artificial hybridisation
2.H. Double fertilization
2.I. Post fertilization events-Development of endosperm and embryo
2.J. Seed
2.K. Apomixis and polyembryony
3.A. The male reproductive system
3.B. The female reproductive system
3.C. Gametogenesis
3.D. Menstrual cycle
3.E. Fertilisation and implantation
3.F. Pregnancy and embryogenic development, parturition and lactation
4.A. Reproductive health- problems and strategies
4.B. Population explosion and birth control
4.C. Medical treatment of pregnancy
4.D. Sexually transmitted diseases
4.E. Infertility
5.A. Mendel’s law of inheritance
5.B. Inheritance of one gene
5.C. Law of dominance and segregation
5.D. Incomplete dominance
5.E. Co-dominance
5.F. Inheritance of two genes
5.G. Law of independent assortment
5.H. Chromosomal theory of inheritance
5.I. Linkage and recombination
5.J. Sex determination in humans
5.K. Mutation
5.L. Genetic disorder: pedigree analysis
5.M. Mendelian disorder
5.N. Chromosomal disorders
6.A. The DNA: structure of polynucleotide chain
6.B. Packaging of DNA helix
6.C. The search for genetic material: transforming principle
6.D. The genetic material is DNA
6.E. Properties of genetic material (DNA vs RNA)
6.F. RNA world
6.G. Replication
6.H. The machinery and enzymes
6.I. Transcription
6.J. Genetic code
6.K. Mutations and genetic code, tRNA
6.L. Translation
6.M. Regulation of gene operation- Lac Operon
6.N. Human genome project
6.O. DNA fingerprinting
7.A. Origin of life
7.B. Evolution of life form- a theory
7.C. What are the evidences for evolution
7.D. What is adaptive radiation
7.E. Biological evolution
7.F. Mechanism of evolution, Hardy Weinberg principle
7.G. A brief account of evolution
7.H. Origin and evolution of man
8.A. Common diseases in human
8.B. Immunity: innate immunity
8.C. Acquired immunity
8.D. Active and passive immunity
8.E. Vaccination and immunisation
8.F. Allergies and autoimmunity
8.G. Immunity system in the body
8.I. Cancer
8.J. Drugs and alcohol abuse
8.K. Prevention and control
9.A. Animal husbandy
9.B. Plant breeding
9.C. Biofortification
9.D. Single cell protein
9.E. Tissue culture
10.A. Microbes in household product and industrial products
10.B. Microbes in sewage treatment
10.C. Microbes in the production of biogas
10.D. MMicrobes in biocontrol agents
10.E. Microbes as biofertilisers
11.A. Principle of biotechnology
11.B. Tools of recombinant DNA technology
11.C. Cloning vectors
11.D. Process of recombinant DNA technology
11.E. Obtaining the foreign gene product and downstream processing
12.A. Biotechnology application in agriculture
12.B. Biotechnology application in medicine
12.C. Transgenic animals

13.A. Organism and its environment: major abiotic factors
13.B. Responses to abiotic factors
13.C. Adaptation
13.D. Population attributes
13.E. Population growth
13.F. Life history variation and population interaction
14.A. Ecosystem- structure and function
14.B. Decomposition
14.C. Energy flow
14.D. Ecological pyramids
14.E. Ecological successions
14.F. Nutrient cycling (carbon and phosphorus)
14.G. Ecosystem services
14.A. Biodiversity
14.B. Patterns of biodiversity
14.C. The importance of species diversity to the ecosystem, loss of biodiversity
14.D. Biodiversity conservation
14.A. Air pollution and its control
14.B. Water pollution and its control
14.C. Solid wastes
14.D. Agro-chemical and their effects
14.E. Radioactive wastes
14.F. Greenhouse effect and global warming
14.G. Ozone depletion in the stratosphere
14.H. Degradation by improper resource utilisation and maintenance
14.I. Deforestation