CBSE Class 12 Syllabus For Biology 2020: As students are preparing for the upcoming CBSE Class 12 board exams, having knowledge of the detailed CBSE Syllabus for Class 12 will definitely be of help. Students can refer to the CBSE syllabus to see if they have missed any chapter or concept. Due to the pandemic in the country, the officials of CBSE have reduced CBSE Class 12 Syllabus for Biology by up to 30%.
In this article, we will provide you with the reduced CBSE Class 12 Syllabus for Biology. This will help students who are preparing for NEET as well. The syllabus for NEET is the same as that of CBSE syllabus of Class 12 and 11 PCB. In this article, we will provide you with the detailed CBSE Class 12 syllabus for Biology Theory and Practical. Read on to find out the revised syllabus of CBSE Class 12 for Biology.
CBSE Class 12 Syllabus For Biology 2020
CBSE Class 12 Biology has both Theory and Practical Exams. The CBSE Class 12 Biology Theory exam is conducted for 70 marks whereas the Practical exam carries the remaining 30 marks. Before getting into the details of CBSE Class 12 Biology Syllabus, let’s have an overview of the units under Grade 12 Biology Syllabus.
|VII||Genetics and Evolution||18|
|VIII||Biology and Human Welfare||14|
|IX||Biotechnology and its Applications||10|
|X||Ecology and Environment||14|
Now let us look into the list of Chapters that are included for the academic year 2020-21 board exams. Along with the chapters, we have also provided CBSE Class 12 NCERT Solutions and Mock Test links for board exam preparation.
|Chapter-2: Sexual Reproduction in Flowering Plants||NCERT Solutions||Mock Test Link|
|Chapter-3: Human Reproduction||NCERT Solutions||Mock Test Link|
|Chapter-4: Reproductive Health||NCERT Solutions||Mock Test Link|
|Chapter-5: Principles of Inheritance and Variation||NCERT Solutions||Mock Test Link|
|Chapter-6: Molecular Basis of Inheritance||NCERT Solutions||Mock Test Link|
|Chapter-8: Human Health and Diseases||NCERT Solutions||Mock Test Link|
|Chapter-10: Microbes in Human Welfare||NCERT Solutions||Mock Test Link|
|Chapter 11: Biotechnology – Principles and Processes||NCERT Solutions||–|
|Chapter-12: Biotechnology and its Application||NCERT Solutions||Mock Test Link|
|Chapter-13: Organisms and Populations||NCERT Solutions||Mock Test Link|
|Chapter-15: Biodiversity and its Conservation||NCERT Solutions||Mock Test Link|
CBSE Class 12 Biology Syllabus: Theory
|CBSE Class 12 Biology Syllabus For 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.||Mock Test Link|
|CBSE Class 12 Biology Syllabus For 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).||Mock Test Link|
|CBSE Class 12 Biology Syllabus For 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).||Mock Test Link|
|CBSE Class 12 Biology Syllabus For 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 human being, 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.||Mock Test Link|
|CBSE Class 12 Biology Syllabus For 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, Human and rice genome projects; DNA fingerprinting.||Mock Test Link|
|CBSE Class 12 Biology Syllabus For Chapter-8: Human Health and Diseases||Pathogens; parasites causing human diseases (malaria, dengue, chikungunya, 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.||Mock Test Link|
|CBSE Class 12 Biology Syllabus For Chapter-10: Microbes in Human Welfare||Microbes in food processing, industrial production, sewage treatment, energy generation and microbes as bio-control agents and bio-fertilizers. Antibiotics; production and judicious use.||Mock Test Link|
|CBSE Class 12 Biology Syllabus Chapter 11: Biotechnology – Principles and Processes||Genetic Engineering (Recombinant DNA Technology).|
|CBSE Class 12 Biology Syllabus For 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, biopiracy and patents.||Mock Test Link|
|CBSE Class 12 Biology Syllabus For 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.||Mock Test Link|
|CBSE Class 12 Biology Syllabus For Chapter-15: Biodiversity and its Conservation||Biodiversity – Concept, patterns, importance; loss of biodiversity; biodiversity conservation; hotspots, endangered organisms, extinction, Red Data Book, Sacred Groves, biosphere reserves, national parks, wildlife, sanctuaries and Ramsar sites.||Mock Test Link|
CBSE Class 12 Biology Syllabus: Practical
CBSE Grade 12 Biology Practical Syllabus are tabulated below:
One Major Experiment 5, 6
One Minor Experiment 2, 3
Slide Preparation 1, 4
Practical Record + Viva Voce
Credit to the students’ work over the academic session may be given
Investigatory Project and its
Project and its Record + Viva Voce
|A. List of Experiments|
1. Prepare a temporary mount to observe pollen germination.
2. Collect and study soil from at least two different sites and study them for texture, moisture content, pH and water holding capacity. Correlate with the kinds of plants found in them.
3. Collect water from two different water bodies around you and study them for pH, clarity and presence of any living organism.
4. Prepare a temporary mount of onion root tip to study mitosis.
5. Study the effect of different temperatures or three different pH on the activity of salivary amylase on starch.
6. Isolate DNA from available plant material such as spinach, green pea seeds, papaya, etc.
|B. Study/observation of the following (Spotting)|
1. Flowers adapted to pollination by different agencies (wind, insects, birds).
2. Identification of stages of gamete development, i.e., T.S. of testis and T.S. of ovary through permanent slides (from grasshopper/mice).
3. Meiosis in onion bud cell or grasshopper testis through permanent slides.
4. T.S. of blastula through permanent slides (Mammalian).
5. Prepared pedigree charts of any one of the genetic traits such as rolling of tongue, blood groups, ear lobes, widow’s peak and colour blindness.
6. Common disease causing organisms like Ascaris, Entamoeba, Plasmodium, any fungus
causing ringworm through permanent slides, models or virtual images. Comment on symptoms of diseases that they cause.
7. Two plants and two animals (models/virtual images) found in xeric conditions. Comment upon their morphological adaptations.
8. Two plants and two animals (models/virtual images) found in aquatic conditions. Comment upon their morphological adaptations.
To further aid you in your studies, Embibe also provides free Class 12 Biology Mock Tests and Class 12 Biology Practice Questions. Solve as many questions as you can and take the chapter-wise mock tests when you feel confident about a chapter.
These questions are formulated in a way so as to prepare you for any difficulty level that might come your way now or in the future. The mock tests come with detailed analysis (if you unlock the Advanced Feedback Analysis) which pinpoints the areas where you are good at and where you need improvement.
|Class 11 PCMB Practice Questions||PCMB Class 11 Mock Tests|
List Of Deleted Portion In CBSE Class 12 Biology Syllabus: Theory
| Chapter-1: Reproduction in Organism|
• 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.
• 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 9: Strategies for Enhancement in Food Production
• Animal husbandry, Plant breeding, tissue culture, single cell protein.
• 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 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; exemplifying case study as a success story addressing environmental issue(s).
List Of Deleted Portion In CBSE Class 12 Biology Syllabus: Practical
| A: List of Experiments|
1. Study the presence of suspended particulate matter in air at two widely different sites.
2. Study the plant population density by quadrat method.
3. Study the plant population frequency by quadrat method.
B. Study/Observer of the following (spotting)
1. Pollen germination on stigma through a permanent slide or scanning electron micrograph.
2. Mendelian inheritance using seeds of different colour/sizes of any plant.
3. Controlled pollination – emasculation, tagging and bagging.
FAQs Regarding CBSE 12th Biology Syllabus
The frequently asked questions regarding CBSE Class 12 Biology Syllabus are given below:
A. Yes, Controlled pollination – emasculation, tagging, and bagging has been removed from CBSE Class 12 Biology Syllabus.
A. Yes, for the academic year 2020-21, the CBSE Syllabus for Class 9 to Class 12 has been changed where the officials have deleted the syllabus by up to 30%.
A. Biotechnology – Principles and Processes is the 11th Chapter in CBSE Class 12 Biology Syllabus.
We hope this detailed article on CBSE Class 12 syllabus for Biology helps you. If you have any queries regarding CBSE Grade 12 syllabus for Biology, drop a comment below. We will get back to you at the earliest.7858 Views