CBSE Class 12 Biology Syllabus 2023-24, PDF Download Link
CBSE Class 12 Biology Syllabus 2023-24: The CBSE board has officially released the Class 12 Biology Syllabus for the academic year 2023-24 on its website. This updated syllabus contains a few changes compared to the 2022-23 syllabus, and Class 12 students need to refer to it to perform well in the subject. You can download the CBSE Syllabus for Class 12 Biology for the academic year 2023-24 from the provided link on this page.
The CBSE Class 12 Biology syllabus PDF encompasses all the crucial topics, offering students a clear understanding of the curriculum. To download the CBSE Class 12 Biology Syllabus PDF directly, simply click the direct PDF link provided on this page. The CBSE Class 12 Biology Syllabus is organized into units, including Reproduction, Genetics and Evolution, Biology and Human Welfare, Biotechnology and its Applications, and Ecology and Environment.
CBSE Class 12 Biology Syllabus
The CBSE Class 12 Biology Syllabus for the academic year 2023-24 is released by the CBSE. The new CBSE Class 12 Biology Syllabus provides students with fresh ideas and introduces them to the latest topics in the field. It also wants to show how similar principles apply to animals, plants, and microorganisms.
The format is designed to make it easy to understand and learn biology, and it connects biology to real life using technology. It shows how biology is related to things like the environment, industry, health, and agriculture.
The updated syllabus focuses on understanding and using scientific principles and offers many chances to learn and appreciate the basics.
CBSE Class 12 Biology Syllabus Highlights
The table below helps students to get a brief overview of the CBSE Class 12 Biology Syllabus:
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CBSE Class 12 Biology Syllabus Highlights |
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Subject |
Biology |
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Category |
Syllabus |
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Released by |
Central Board of Secondary Education |
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Academic Year |
2023-24 |
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Subject Code |
043 |
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Marking Scheme |
100 (70 marks theory + 30 marks practicals) |
CBSE Class 12 Biology Syllabus 2023-24 PDF Download
The candidates can download the CBSE Class 12 Biology Syllabus 2023-24 PDF by clicking the link below. The CBSE board has released the CBSE Class Biology Syllabus on its official website @cbse.gov.in.
CBSE Class 12 Biology Syllabus PDF 2023- 24
CBSE Class 12 Biology Theoretical Syllabus
The table below presents the CBSE Class 12 Biology Syllabus for the academic year 2023-24, including the marking scheme and the number of periods:
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CBSE Class 12 Biology Syllabus (2023-24) |
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Unit |
Title |
Marks |
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VI |
Reproduction |
16 |
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VII |
Genetics and Evolution |
20 |
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VIII |
Biology and Human Welfare |
12 |
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IX |
Biotechnology and its Applications |
12 |
|
X |
Ecology and Environment |
10 |
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Total |
70 |
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CBSE Class 12 Biology Practical Syllabus 2023-24
The table below presents the CBSE Class 12 Biology Practical Syllabus for 2023-24, including the marking scheme. The Biology Practical exam will last for 3 hours and will be worth 30 marks.
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CBSE Class 12 Biology Practical Syllabus (2023-24) |
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Evaluation Scheme |
Marks |
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One Major Experiment 5 |
5 |
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One Minor Experiment 2 & 3 |
4 |
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Slide Preparation 1 & 4 |
5 |
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Spotting 7 |
7 |
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Practical Record + Viva Voce |
4 |
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Investigatory Project and its Project Record + Viva Voce |
5 |
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Total |
30 |
CBSE Class 12 Biology Syllabus 2023-24 Chapter Wise Syllabus
Unit 6: Reproduction
The chapters covered in Unit 6 of the CBSE Class12 Biology Syllabus are discussed below:
Chapter 1: Sexual Reproduction in Flowering Plants
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Flower structure;
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Development of male and female gametophytes;
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Pollination - types, agencies, and examples;
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Out breeding devices; pollen-pistil interaction;
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Double fertilization;
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Post-fertilization events - development of endosperm and embryo,
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Development of seed and fruit formation;
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Unique modes- apomixis, parthenocarpy, polyembryony;
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Significance of seed dispersal and fruit formation.
Chapter 2: Human Reproduction
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Male and female reproductive systems;
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Microscopic anatomy of testis and ovary;
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Gametogenesis - spermatogenesis and oogenesis;
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Menstrual cycle;
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Fertilization,
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Embryo development upto blastocyst formation,
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Implantation;
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pregnancy and placenta formation (elementary idea);
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Parturition (elementary idea);
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Lactation (elementary idea).
Chapter 3: Reproductive Health
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Need for reproductive health and prevention of Sexually Transmitted Diseases (STDs);
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Birth control - need and methods, contraception, and medical termination of pregnancy (MTP);
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Amniocentesis;
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Infertility and assisted reproductive technologies - IVF, ZIFT, GIFT (elementary idea for general awareness).
Unit 7: Genetics and Evolution
Chapter 4: Principles of Inheritance and Variation
Heredity and variation:
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Mendelian Inheritance;
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Deviations from Mendelism – incomplete dominance, co-dominance, multiple alleles and inheritance of blood groups,
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Pleiotropy;
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Elementary idea of polygenic inheritance;
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Chromosome theory of inheritance; chromosomes and genes;
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Sex determination - in humans, birds, and honey bees; linkage and crossing over;
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Sex-linked inheritance - hemophilia, color blindness;
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Mendelian disorders in humans - thalassemia; chromosomal disorders in humans;
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Down's syndrome, Turner's, and Klinefelter's syndromes
Chapter 5: Molecular Basis of Inheritance
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Search for genetic material and DNA as genetic material;
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Structure of DNA and RNA
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DNA packaging
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DNA replication
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Central Dogma
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Transcription
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Genetic code
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Translation
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Gene Expression and regulation - lac operon; Genome, Human and rice genome projects
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DNA fingerprinting.
Chapter 6: Molecular Basis of Inheritance
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Evolution Origin of life;
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Biological evolution and evidence for biological evolution (paleontology, comparative anatomy, embryology, and molecular evidence);
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Darwin's contribution,
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Modern synthetic theory of evolution;
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Mechanism of evolution - variation (mutation and recombination) and
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Natural selection with examples, types of natural selection;
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Gene flow and genetic drift; Hardy - Weinberg's principle; adaptive radiation;
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Human evolution.
Unit-VIII Biology and Human Chapter
Chapter 7: Human Health and Diseases
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Pathogens;
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Parasites causing human diseases (malaria, dengue, chikungunya, filariasis, ascariasis, typhoid, pneumonia, common cold, amoebiasis, ring worm) and their control;
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Basic concepts of immunology - Caccines; cancer, HIV and AIDS; Adolescence - drug and alcohol abuse.
Chapter 8: Microbes in Human Welfare
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Microbes in food processing,
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Industrial Production, Sewage treatment, Energy generation, and microbes as bio-control agents and bio-fertilizers.
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Antibiotics; production and reasonable use.
Unit-IX Biotechnology and its Applications
Chapter 9: Biotechnology - Principles and Processes
Biotechnology - Principles and Processes Genetic Engineering (Recombinant DNA Technology).
Chapter 10: 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.
Unit-X Ecology and Environment
Chapter 11: Organisms and Populations
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Population interactions - Mutualism, competition, predation,
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Parasitism;
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Population attributes - growth, birth rate and death rate, age distribution.
(Topics excluded: Organism and its Environment, Major Abiotic Factors, Responses to Abiotic Factors, Adaptations)
Chapter 12: Ecosystem:
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Patterns
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Components
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Productivity and decomposition;
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Energy flow;
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Pyramids of number,
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Biomass, energy
(Topics excluded: Ecological Succession and Nutrient Cycles).
Chapter 13: Biodiversity and Its Conservation
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Biodiversity-Concept,
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Patterns
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Importance
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Loss of biodiversity;
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Biodiversity Conservation
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Hotspots
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Endangered Organisms
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Extinction
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Red Data Book
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Sacred Groves
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Biosphere Reserves
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National parks
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Wildlife
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Sanctuaries and Ramsar sites
Once students have familiarized themselves with the CBSE Class 12 Syllabus, they must create a structured study schedule. This will help them stay on course and complete the syllabus within the allotted time frame.
Additionally, it allows them ample time to practice previous years' CBSE Class 12 Biology papers and sample papers. Therefore, starting their studies right from the beginning of the academic session is essential to excel in the 12th board exams. Furthermore, consider joining PW Online CBSE Class 12 Classes for further support and guidance.
CBSE Class 12 Biology Syllabus FAQs
Q1: Which chapter in the CBSE Class 12 Biology Syllabus has a higher weightage for marks?
Ans: The chapter with a significant mark allocation in the CBSE Class 12 Biology Syllabus is Genetics and Evolution. Students can effectively grasp the concepts covered in this chapter by joining PW CBSE Class 12 Biology classes
Q2: What is the mark distribution for the CBSE Class 12 Biology exam per the syllabus?
Ans: The mark distribution for the CBSE Class 12 Biology exam, by the syllabus, is 70 marks allocated for theory and 30 marks designated for practical assessments.
Q3: Where can I download the CBSE Class 12 Biology Syllabus PDF?
Ans: You can download the CBSE Class 12 Biology Syllabus PDF from this page. The subject experts have meticulously designed the syllabus PDF to provide students with reliable study materials.
Q4. What are the different career options after passing the CBSE Class 12 Biology exam?
Ans: There are numerous career options available after completing CBSE Class 12 Biology. Some popular choices include:
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Medical field
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Biotechnology
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Pharmaceutical industryEnvironmental science,
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Agriculture,
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Teaching,
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Research
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Regenerate
Q5: How can students effectively prepare for the CBSE Class 12 Biology exam to secure good marks?
Ans: To secure good marks in the CBSE Class 12 Biology exam, students should focus on a comprehensive study, practice previous papers, and seek expert guidance when needed.
