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CBSE Class 10 , Class 11 , Class 12 Subjects

Question Banks Readily Available for the following Subjects. CBSE Class 12th standard subject for all groups in both tamil and english medium. Class 10th Standard all subjects. [ except tamil and english subjects ]. Buy both medium and prepare same set of question paper with single click. Our Database includes CBSE Class 10 and Class 12 subjects.

12th Standard CBSE Biology


Chapter-1: Reproduction in Organisms
Reproduction, a characteristic feature of all organisms for continuation of species; modes of reproduction - asexual and sexual reproduction; asexual reproduction - binary fission, sporulation, budding, gemmule formation, fragmentation; vegetative propagation in plants.
Chapter-2: Sexual Reproduction in Flowering Plants
Flower structure; development of male and female gametophytes; pollination - types, agencies and examples; outbreeding devices; pollen-pistil interaction; double fertilization; post fertilization events - development of endosperm and embryo, development of seed and formation of fruit; special modes-apomixis, parthenocarpy, polyembryony; Significance of seed dispersal and fruit formation.
Chapter-3: Human Reproduction
Male and female reproductive systems; microscopic anatomy of testis and ovary; gametogenesis - spermatogenesis and oogenesis; menstrual cycle; fertilisation, embryo development upto blastocyst formation, implantation; pregnancy and placenta formation (elementary idea); parturition (elementary idea); lactation (elementary idea).
Chapter-4: Reproductive Health
Need for reproductive health and prevention of Sexually Transmitted Diseases (STDs); birth control - need and methods, contraception and medical termination of pregnancy (MTP); amniocentesis; infertility and assisted reproductive technologies - IVF, ZIFT, GIFT (elementary idea for general awareness).


Genetics and Evolution

Chapter-5: Principles of Inheritance and Variation
Heredity and variation: Mendelian inheritance; deviations from Mendelism - incomplete dominance, co-dominance, multiple alleles and inheritance of blood groups, pleiotropy; elementary idea of polygenic inheritance; chromosome theory of inheritance; chromosomes and genes; Sex determination - in humans, birds and honey bee; linkage and crossing over; sex linkedinheritance - haemophilia, colour blindness; Mendelian disorders in humans - thalassemia; chromosomal disorders in humans; Down's syndrome, Turner's and Klinefelter's syndromes.
Chapter-6: Molecular Basis of Inheritance
Search for genetic material and DNA as genetic material; Structure of DNA and RNA; DNA packaging; DNA replication; Central dogma; transcription, genetic code, translation; gene expression and regulation - lac operon; genome and human and rice genome projects; DNA fingerprinting.
Chapter-7: Evolution
Origin of life; biological evolution and evidences for biological evolution (paleontology, comparative anatomy, embryology and molecular evidences); Darwin's contribution, modern synthetic theory of evolution; mechanism of evolution - variation (mutation and recombination) and natural selection with examples, types of natural selection; Gene flow and genetic drift; Hardy - Weinberg's principle; adaptive radiation; human evolution.  


Biology and Human Welfare

Chapter-8: Human Health and Disease
Pathogens; parasites causing human diseases (malaria, dengue, chickengunia, filariasis, ascariasis, typhoid, pneumonia, common cold, amoebiasis, ring worm) and their control; Basic concepts of immunology - vaccines; cancer, HIV and AIDS; Adolescence - drug and alcohol abuse.
Chapter-9: Strategies for Enhancement in Food Production
Improvement in food production: Plant breeding, tissue culture, single cell protein, Biofortification, Apiculture and Animal husbandry
Chapter-10: Microbes in Human Welfare
In household food processing, industrial production, sewage treatment, energy generation and microbes as biocontrol agents and biofertilizers. Antibiotics; production and judicious use.


Biotechnology and Its Applications

Chapter-11: Biotechnology - Principles and processes
Genetic Engineering (Recombinant DNA Technology).
Chapter-12: Biotechnology and its Application
Application of biotechnology in health and agriculture: Human insulin and vaccine production, stem cell technology, gene therapy; genetically modified organisms - Bt crops; transgenic animals; biosafety issues, bio piracy and patents.


Ecology and Environment

Chapter-13: Organisms and Populations
Organisms and environment: Habitat and niche, population and ecological adaptations; population interactions - mutualism, competition, predation, parasitism; population attributes - growth, birth rate and death rate, age distribution.
Chapter-14: Ecosystem
Ecosystems: Patterns, components; productivity and decomposition; energy flow; pyramids of number, biomass, energy; nutrient cycles (carbon and phosphorous); ecological succession; ecological services - carbon fixation, pollination, seed dispersal, oxygen release (in brief).
Chapter-15: Biodiversity and its Conservation
Concept of biodiversity; patterns of biodiversity; importance of biodiversity; loss of biodiversity; biodiversity conservation; hotspots, endangered organisms, extinction, Red Data Book, biosphere reserves, national parks, sanctuaries and Ramsar sites.
Chapter-16: Environmental Issues
Air pollution and its control; water pollution and its control; agrochemicals and their effects; solid waste management; radioactive waste management; greenhouse effect and climate change; ozone layer depletion; deforestation; any one case study as success story addressing environmental issue(s).



Ecosystem–Structure and Function-Productivity-Decomposition-Energy Flow-Ecological Pyramids-Ecological Succession-Nutrient Cycling-Ecosystem Services


Biodiversity and Conservation

Biodiversity-Biodiversity Conservation


Environmental Issues

Air Pollution and Its Control-Water Pollution and Its Control-Solid Wastes-Agro-chemicals and their Effects-Radioactive Wastes-Greenhouse Effect and Global Warming-Ozone Depletion in the Stratosphere-Degradation by Improper Resource Utilisation and Maintenance-Deforestation


Human Health and Disease

Common Diseases in Humans-Immunity-AIDS-Cancer-Drugs and Alcohol Abuse


Strategies for Enhancement in Food Production

Animal Husbandry-Plant Breeding-Single Cell Proteins-Tissue Culture


Microbes in Human Welfare

Microbes in Household Products-Microbes in Industrial Products-Microbes in Sewage Treatment-Microbes in Production of Biogas-Microbes as Biocontrol Agents-Microbes as Biofertilisers


Biotechnology : Principles and Processes

Principles of Biotechnology-Tools of Recombinant DNA Technology-Processes of Recombinant DNA Technology


Biotechnology and its Applications

Biotechnological Applications in Agriculture-Biotechnological Applications in Medicine-Transgenic Animals-Ethical Issues


Organisms and Populations

Organism and its Environment-Populations


Principles of Inheritance and Variation

Mendel’s Laws of Inheritance-Inheritance of One Gene-Inheritance of Two Genes-Sex Determination-Mutation-Genetic Disorders


Molecular Basis of Inheritance

The DNA-The Search for Genetic Material-RNA World-Replication-Transcription-Genetic Code-Translation-Regulation of Gene Expression-Human Genome Project DNA Fingerprinting



Origin of Life-Evolution of Life Forms – A Theory-What are the Evidence for Evolution?-What is Adaptive Radiation?-Biological Evolution-Mechanism of Evolution-Hardy – Weinberg Principle-A Brief Account of Evolution-Origin and Evolution of Man


Reproductive Health

Reproductive Health-Problems and Strategies-Population Explosion and Birth Control-Medical Termination of Pregnancy-Sexually Transmitted Diseases-Infertility


Human Reproduction

The Male Reproductive System-The Female Reproductive System-Gametogenesis-Menstrual Cycle-Fertilisation and Implantation-Pregnancy and Embryonic Development-Parturition and Lactation


Reproduction in Organisms

Asexual Reproduction-Sexual Reproduction


Sexual Reproduction in Flowering Plants

Flower – A Fascinating Organ of Angiosperms-Pre-fertilisation : Structures and Events-Double Fertilisation-Post-fertilisation: Structures and Events-Apomixis and Polyembryony



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