Bihar Board Class 12 Biology Syllabus 2024-25 - Bihar Board 12th Class Biology Syllabus Download PDF

Bihar Board Class 12 Biology Syllabus 2024-25: The Bihar School Examination Board (BSEB) released the BSEB Class 12 syllabus 2024-25 for Biology along with all other subjects. Students can check and download the Bihar Board 12th Biology syllabus 2024-25 pdf from the official website of the Bihar Board, at biharboardonline.bihar.gov.in . The Class 12 Biology Syllabus 2024-25 of Bihar Board consists of 5 units and 16 chapters in total. Based on its importance, each unit carries varying marks. The highest-weightage-carrying units are Genetics and Evolution, Biology & Human Welfare, and Biotechnology and Its Applications . Each of the units will carry a weightage of 18 marks in the BSEB 12th Biology Exam 2025. Students can check out the Bihar Board 12th exam pattern 2025 .

As per the Bihar Board Class 12 Biology exam pattern 2024-25, the Class 12 Biology question paper will consist of both objective and subjective questions, carrying 35 marks each. There will be 50% multiple-choice questions, carrying 1 mark each, and 50% subjective-type questions. Meaning, a total of 35 questions will be MCQs and the remaining 35 questions will be short, and long answer questions. The BSEB 12th Biology Exam 2024 will be held for a total of 100 marks, out of which 70 marks are reserved for the theory exam, while 30 marks will be for the practical exam. The Bihar Board will conduct the BSEB 12th exams 2025 in February 2025 in two shifts, morning (9.30 am to 12.45 pm) and afternoon (1:45 pm to 5 pm). The BSEB 12th practical exams will be conducted in January 2025. Read the entire article to know more about the Bihar Board 12th Biology Syllabus 2024-25.
Also read: BSEB 12th Syllabus 2024-25

Bihar Board Class 12 Biology Syllabus 2024-25 Download PDF

The BSEB 12th Biology Syllabus 2025 was uploaded online at biharboardonline.bihar.gov.in. The PDF link can be downloaded from the table below.

Features	PDF Link
Bihar Board 12th Biology Syllabus	Download Here

Bihar Board Class 12 Biology Syllabus 2024-25: Course Structure

The Bihar Board class 12 Biology is bifurcated into two parts which are Botany and Zoology. The questions are set equally from both parts. The detailed course structure of BSEB 12th Biology has been tabulated below:

Unit	Unit Name	Marks
Unit 1	Sexual Reproduction	06
Unit 2	Genetics and evolution	18
Unit 3	Biology & Human Welfare	18
Unit 4	Biotechnology and its applications	18
Unit 5	Ecology and environment	10

Also read: BSEB 12th Exam Pattern 2024-25

Bihar Board Class 12 Biology Syllabus 2024-25: Chapter-wise

As mentioned earlier, there are a total of 16 chapters in the Bihar Board class 12 syllabus 2024-25 for Biology. The chapter-wise BSEB 12th Biology syllabus 2024-25 is provided below:

Unit 1: Sexual Reproduction

Chapters included in this unit are as follows:

• Reproduction in Organisms
• Sexual Reproduction in Flowering Plants
• Human Reproduction
• Reproductive Health

Unit 2: Genetics and Evolution

• Principles of Inheritance and Variation
• Molecular Basis of Inheritance
• Evolution

Unit 3: Biology & Human Welfare

• Human Health and Disease
• Strategies for Enhancement in Food Production
• Microbes on Human Welfare

Unit 4: Biotechnology and Its Applications

• Biotechnology: Principles and Processes
• Biotechnology and Its Applications

Unit 5: Ecology and Environment

• Organisms and Populations
• Ecosystem
• Biodiversity and Conservation
• Environmental Issues

Also read: BSEB 12th Exam Date 2025

Bihar Board Class 12 Biology Practical Syllabus 2024-25

The Bihar Board Class 12 Biology practical exam will be conducted for 30 marks and for 3 hours. Students can check out the evaluation scheme of Bihar Board Class 12 Biology practical exam for the current academic session 2024-25 from the table below:

Evaluation Scheme	Marks
One Major Experiment Part A (Experiment No- 1,3,7,8)	5 Marks
One Minor Experiment Part A (Experiment No- 6,9,10,11,12,13)	4 Marks
Slide Preparation Part A (Experiment No- 2,4,5)	5 marks
Spotting Part B	7 marks
Practical Record + Viva Voce Credit to the students’ work over the academic session may be given Project Record + Viva Voce	4 Marks 5 Marks
Total	30 marks

Bihar Board Class 12 Biology Syllabus 2024-25: Question Paper Pattern

The question paper design for the Bihar Board 12th Biology syllabus 2024-25 will be in the following format:

Typology of Questions	Number of Questions	Marks
Objective	35 Questions x 1	35 marks
Subjective	10 Questions x 2 marks [Out of 20 questions, 10 have to be attended] 3 Questions x 5 marks [Out of 5 questions, 3 have to be attended]	35 marks
Total	70
Practical	30
Total	100

Also read: BSEB 12th Previous Years Question Paper

Bihar Board Class 12 Biology Syllabus 2024-25: Prescribed Books

Students can refer to various resources and reference books that they can find online and offline. However, there is a series of textbooks recommended by the BSEB board that can turn out to be the best resource for the BSEB 12th students. Following are some of the best-prescribed books that can be used by the students for BSEB class 12 Biology exam preparation:

• NCERT (Recommended by the Bihar Board)
• BSEB 12th Previous year solved question papers
• Chand’s Biology by B.P. Pandey
• Golden Question Banks

Also read: BSEB 12th Preparation Tips 2025

How to Download Bihar Board Class 12 Biology Syllabus 2024-25?

The Bihar Board class 12 syllabus PDF for Biology can be downloaded from the official website as well. Follow the simple steps given below to download the syllabus:

• Step 1: Open the official website of the Bihar Board, biharboardonline.bihar.gov.in.
• Step 2: On the homepage, click on the ‘BSEB 12th Syllabus 2024-25’ link under the latest updates.
• Step 3: Now, select the subject (Biology) and language you want to download the syllabus.
• Step 4: Click to download the Bihar Board class 12 syllabus pdf.
• Step 5: Download and save the BSEB 12th Biology syllabus 2024-25 for future reference.

Bihar Board Class 12 Biology Syllabus 2024-25: Preparation Tips

Students appearing for the BSEB 12th exam in the upcoming 2024-25 exam, are advised to go through the below-mentioned preparation tips:

• Go through the latest Bihar Board Class 12 Biology Syllabus and exam pattern thoroughly.
• Learn the important concepts along with the diagrams.
• Practise diagrams with labels. Add the diagrams in the answers to get considerable marks.
• Focus more on the maximum weightage carrying topics and chapters. However, avoid suggestive studies.
• Most of the questions are asked from units like Genetics and Evolution, Biology and Human Welfare, and Biotechnology and its Applications. Prepare these 3 units well.
• Follow NCERT Book for the BSEB 12th Biology exam preparation. You can only find MCQ-based questions from NCERT.
• Solve the Bihar Board Class 12 model papers and previous year question papers after completing the syllabus.

Students are advised to complete the Bihar Board Class 12 Biology Syllabus 2024-25 a month or two before the commencement of the exam. They must keep the last two months for solving the BSEB 12th previous year question papers and model papers.