CBSE Class 12 Biology Syllabus 2023-24 PDF Download

CBSE Class 12 Biology Syllabus has been released by the CBSE board on its official website. The CBSE board publishes the curriculum for every subject and continues to modify the course for students’ benefit. The syllabus for Class 12 Biology 2023-24 will a few changes when compared to the 2022-23 syllabus. Therefore, Class 12 students can refer CBSE Syllabus for Biology to score well in the subject. Download the CBSE Syllabus for Class 12 Biology for the academic year 2023-24 from this page.

The syllabus PDF includes all the essential topics that provide a clear idea to students about the curriculum. Students can directly access the CBSE Biology Syllabus for Class 12 by clicking the link provided below. The CBSE Class 12 Biology Syllabus includes units such as Reproduction, Genetics and Evolution, Biology and Human Welfare, Biotechnology and its Applications and Ecology and Environment. The CBSE Class 12 Syllabus also provides information about the marking scheme of each topic in Biology.

CBSE Class 12 Biology Syllabus PDF 2023-24

Students can download the latest released CBSE Class 12 Biology Syllabus PDF from the link below. Going through the syllabus will help students to know the topics they are going to study in Biology during the academic year.

CBSE Class 12 Biology Syllabus 2023-24 PDF

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CBSE Syllabus for Class 12 Biology 2023-24: Course Structure

Mentioned below is the CBSE Class 12 Biology Syllabus for 2023-24, along with the marking scheme and no. of periods. Students can get the number of chapters and subtopics under each unit in the PDF provided above.

Evaluation Scheme (Theory)
Units Topics Marks
VI Reproduction 16
VII Genetics and Evolution 20
VIII Biology and Human Welfare 12
IX Biotechnology and its Applications 12
X Ecology and Environment 10
Total Theory 70
Practicals 30
Total 100

Students can check out the syllabus of class 1 to class 12 for all the subjects by visiting the CBSE Syllabus page.

2023-24 CBSE Class 12 Biology Syllabus

Unit Name Chapters
Unit-VI Reproduction Chapter-1: Sexual Reproduction in Flowering Plants
Chapter-2: Human Reproduction
Chapter-3: Reproductive Health
Unit-VII Genetics and Evolution Chapter-4: Principles of Inheritance and Variation
Chapter-5: Molecular Basis of Inheritance
Chapter-6: Evolution
Unit-VIII Biology and Human Welfare Chapter-7: Human Health and Diseases
Chapter-8: Microbes in Human Welfare
Unit-IX Biotechnology and its Applications Chapter-9: Biotechnology – Principles and Processes
Chapter-10: Biotechnology and its Applications
Unit-X Ecology and Environment Chapter-11: Organisms and Populations
Chapter-12: Ecosystem
Chapter-13: Biodiversity and Its Conservation

CBSE Class 12 Biology Practicals Evaluation Scheme

In Biology, subject practicals play an important role. Students must focus on practicals simultaneously with theory learning as it will help them understand the subject in a better way. A total of 30 marks are devoted to the practicals. Performing well in Biology Practicals will increase their overall score in Biology subject. Students can find the list of experiments of Class 12 Biology in the syllabus pdf. The table below shows the Evaluation Scheme for CBSE Class 12 Practical exam.

Evaluation Scheme Marks
One Major Experiment 5 5
One Minor Experiment 2 & 3 4
Slide Preparation 1 & 4 5
Spotting 7
Practical Record + Viva Voce 4
Investigatory Project and its Project Record + Viva Voce 5
Total 30

After knowing the CBSE Class 12 Syllabus, students must prepare a study plan for themselves. Through this, their studies will be on track, and they could be able to finish the syllabus on time. Also, they get time to practise the CBSE Class 12 Biology previous years papers and sample papers. So, start studying from the beginning of the academic session to excel in the 12th board exam.

Get access to interactive lessons and videos related to Maths and Science with BYJU’S App/ Tablet.

Frequently Asked Questions on CBSE Class 12 Biology Syllabus 2023-24


Which chapter is of high marks in the CBSE Class 12 Biology Syllabus?

The chapter Genetics and Evolution is of high marks in the CBSE Class 12 Biology Syllabus. Students can learn the concepts covered effectively using the study materials offered at BYJU’S.

What is the marks distribution for CBSE Class 12 Biology exam according to the syllabus?

The marks distribution for CBSE Class 12 Biology exam, according to the syllabus, is 70 marks for theory and 30 marks for practical.

Where can I find the CBSE Class 12 Biology syllabus?

Students can find the CBSE Class 12 Biology Syllabus for free at BYJU’S. The subject experts design the syllabus PDF to offer students with trustworthy materials to rely on.


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