CBSE Class 12 Biology syllabus

CBSE Biology

CBSE Class 12 Biology syllabus is imperative for exam preparations. Referring to the syllabus will help you follow the curriculum for the Biology subject smoothly, helping you to maintain all the topics and chapters to be dressed for board exams. The syllabus covers the marking design of the Biology exam that can help you which topics to cover first and how to progress with the learning. The syllabus also consolidates for practical examination, counseled books, and the internal assessment scheme for Class 12 Biology. 

Class 12 Biology Syllabus comprises like asexual replication – binary fission, budding, sporulation, and fragmentation, vegetative propagation, pollination, the arrangement of the flower, seed dispersal significance, composition. You will also study the concepts of inheritance such as codominance, blood groups, and genes. You will learn about DNA, RNA, ancestral code, gene expression, and how life evolved. Other topics include how various populations live in special habitats, ecosystems, and population attributes. 

You can download the CBSE Class 12 Biology syllabus from the ascidians easily for your organization. Along with the Class 12 syllabus for Biology, we also a complete CBSE study matter. This includes chapter notes, update notes, midcaps, flashcards, mock tests, test suites, assignments, planners. You can enroll in our live classes, where our authorities will teach you all the basics to combined ideas in easy to understand language. Our study materials are exclusively based on the tardiest CBSE syllabus and exam pattern for Class 12 Biology. 

Chapter-wise CBSE Class 12 Biology Syllabus 

The Class 12 Biology syllabus for 2021-22 contains 5 units and 16 chapters. These units contain 70 marks in total while 30 marks are allocated to practical analysis and subjective assessments.

CBSE Class 12 Biology Syllabus. 

Unit 1: Reproduction 

Reproduction, modes of reproduction, flower structure, vegetative propagation in plants, male and female reproductive systems, sexual and asexual reproduction, pollination, reproductive health, birth control 

14 marks 

Unit 2: Genetics and Evolution 

Principles of inheritance and variation, chromosome theory of inheritance, sex determination, DNA fingerprinting, evolution, biological evolution, central dogma, Lamarck’s theory of use and disuse of organs, Mendelian inheritance, inheritance of blood groups, the structure of DNA and RNA, Darwin’s theory of evolution, Hardy – Weinberg’s principle, human evolution 

18 marks 

Unit 3: Biology and Human Welfare 

Human health and diseases, parasites causing human diseases, plant breeding, single-cell protein, antibiotics, microbes in food processing, bio-gas fertilizers, the immune system in human beings, vaccination, animal husbandry, bio-control agents 

14 marks 

Unit 4: Biotechnology and Its Applications 

Biotechnology, human insulin, RNA interference, gene therapy, biosafety issues, its principles, and applications, genetic engineering, genetically modified organisms, applications of biotechnology in health and agriculture

10 marks 

Unit 5: Ecology and Environment 

Organisms and populations, ecosystem, conservation of biodiversity, national parks, wildlife, biosphere reserves, environmental issues, air pollution, habitat and niche, population interactions, ecological adaptations, structure and functions of the ecosystem, loss of biodiversity, radioactive waste management, solid waste management, ozone layer depletion, and deforestation 

14 marks 


70 Marks 

CBSE Class 12 Biology Syllabus FAQs 

1 Why is Class 12th Biology Syllabus important? 

Class 12 Biology syllabus is an influential document that helps you in study evolution for the board exam. When you have a list of all the topics to be studied for the exam, you can create a study plan respectively. The syllabus also assists you to keep a report of all your learning processes. You can color-code the topics based on their responsibility or the questions that you have developed and are yet to be done. The syllabus also intimates the exam guide and the marking system for biology Class 12. 

2 What is the syllabus for CBSE Class 12 Biology practical exam? 

The practical research includes 30 marks in total. Students will be assessed based on one major research, one minor experiment, slide preparation, practical record, spotting, and project record. 

3 How to prepare for the Class 12th Biology exam? 

  • Read the CBSE syllabus for Class 12 Biology accurately and recognize the exam guide and marking scheme. 
  • Complete all the basic theories and do not study any additional topics. Prefer rendering only NCERT books. 
  • Use flashcards to memorize relevant terms and diagrams, for instance, the building of a cluster et cetera
  • Practice previous year board exam themes and sample papers to understand your areas of deficiencies and strengths in the subject 
  • Take online CBSE coaching from expert tutors to understand all the typical notions of biology and biotechnology with ease 

4 How can help you to prepare for Class 12 Biology? 

Download the complete syllabus for CBSE Class 12 Biology 2021-22 from the ask II Tians website and begin your preparedness with our study resources. We follow the latest CBSE guidelines and exam original to create the best study sources for Class 12 Biology: 

  • Chapter Notes, Revision Notes 
  • Class 12 Biology NCERT Solutions 
  • Online lessons, Live Classes, Pre-recorded Lessons
  • Previous Year Papers for Class 12 Biology 
  • Mindmaps, Flashcards, Study Planners 
  • Chapter tests, Unit tests & more!