Biology Class 12 syllabus
CBSE Class 12 Biology Syllabus 2019-20 | Download Detailed Syllabus

Here in this article the students can find the detailed CBSE Class 12 Biology Syllabus 2019-20. Each chapter is described topic wise. Students should follow this and prepare according to it for the exams.

UNIT

TOPICS

Chapter-1 The Living World

·       What is living? Biodiversity

·       Need for classification; three domains of life; taxonomy and systematics; concept of species and taxonomical hierarchy; binomial nomenclature; tools for study of taxonomy- museums, zoological parks, herbaria, botanical gardens

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)

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 linked inheritance – 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 materia

·       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

 

Chapter-8 Human Health and Diseases

·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 bio-control agents and bio-fertilizers

·       Antibiotics; production and judicious use

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

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

·       Biodiversity-Concept, patterns, importance; 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 impact and mitigation; ozone layer depletion; deforestation; any one case study as success story addressing environmental issue(s)

 

 

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