NCERT Books Class 12 Biotechnology: Chapter PDFs
Looking for the official NCERT Books Class 12 Biotechnology textbook? You’ve found it. This page lists all 13 chapter PDFs from the current NCERT edition, verified directly on ncert.nic.in. Since Biotechnology is a CBSE elective, confirm with your school that this is your assigned book before downloading.
Every chapter PDF below was checked for availability and correctness on 11 July 2026. This matters because outdated copies hosted elsewhere may lack updated chapters or show incorrect page counts, which wastes revision time. The links below point only to the official NCERT source.
About the NCERT Class 12 Biotechnology Textbook
The NCERT Biotechnology textbook is a single-volume resource designed for Class 12 students studying this elective subject. It is published in English and contains 13 chapters spanning 342 pages in total. Unlike Biology, which is divided into Part I and Part II, Biotechnology has only one prescribed NCERT book, making it simpler to track your reading.
The current edition available on the official NCERT portal covers all topics prescribed by the CBSE for Class 12 Biotechnology. Since no edition year or session-specific variant is listed in the registry, treat this as the current prescribed edition and verify the exact print run for your school year at ncert.nic.in.
Chapter-wise NCERT Class 12 Biotechnology PDF Links
| Ch. | Chapter | Pages | Official PDF |
|---|---|---|---|
| 1 | Recombinant DNA Technology | 8 | |
| 2 | 2.1 Two Key Components of Recombinant DNA Technology | 18 | |
| 3 | 3.1 IDENTIFICATION OF CANDIDATE GENE | 40 | |
| 4 | 4.1 DNA FINGERPRINTING | 44 | |
| 5 | Genome Engineering | 30 | |
| 6 | Microbial, Plant, Animal Cell, Organ Cultures and Bioprocessing | 26 | |
| 7 | 7.1 HISTORICAL PERSPECTIVE | 18 | |
| 8 | Box 1 | 24 | |
| 9 | 9.1 STEM CELL CULTURE | 22 | |
| 10 | Bioprocessing and Biomanufacturing | 22 | |
| 11 | Bioremediation | 36 | |
| 12 | Recent Innovations in Biotechnology | 34 | |
| 13 | Entrepreneurship | 20 |
Chapter 1: Recombinant DNA Technology (8 pages) introduces restriction enzymes and vectors, the molecular tools that allow scientists to cut and splice DNA fragments.
Chapter 2: Two Key Components of Recombinant DNA Technology (18 pages) explores cloning vectors and host systems, explaining how engineered DNA is inserted and replicated inside living cells.
Chapter 3: Identification of Candidate Gene (40 pages) covers gene identification techniques and gene libraries, helping you understand how scientists locate and isolate specific genes of interest.
Chapter 4: DNA Fingerprinting (44 pages) details DNA fingerprinting methods and their forensic applications, showing how unique DNA profiles are used in criminal investigations and paternity testing.
Chapter 5: Genome Engineering (30 pages) focuses on CRISPR-Cas9 technology and genome editing strategies, representing the cutting-edge tools now used to modify entire genomes with precision.
Chapter 6: Microbial, Plant, Animal Cell, Organ Cultures and Bioprocessing (26 pages) explains cell and tissue culture techniques across different organism types and the downstream process of growing cultures at industrial scale.
Chapter 7: Historical Perspective (18 pages) provides the history of biotechnology, tracing how scientific advances from fermentation to genetic engineering shaped the field.
Chapter 8: Box 1 (24 pages) is a continuation chapter on applied cell and tissue culture topics. Note the unusual label “Box 1” instead of a standard chapter number—this is the official NCERT title and is not a missing or supplementary section.
Chapter 9: Stem Cell Culture (22 pages) covers stem cell types and culture methods, essential for understanding regenerative medicine and therapeutic applications.
Chapter 10: Bioprocessing and Biomanufacturing (22 pages) discusses fermenters and downstream processing, the engineering side of biotechnology that produces medicines and biologics at scale.
Chapter 11: Bioremediation (36 pages) examines microbial remediation strategies for environmental pollutants, showing how biotechnology solves ecological problems.
Chapter 12: Recent Innovations in Biotechnology (34 pages) surveys emerging biotech applications, including synthetic biology and personalized medicine breakthroughs.
Chapter 13: Entrepreneurship (20 pages) introduces biotech start-ups and intellectual property basics, preparing students to understand the business side of biotechnology ventures.
How to Use This Biotechnology Textbook for Board Preparation
Follow this routine to get the most from your NCERT Biotechnology textbook:
- Verify before printing. Open each chapter PDF from the table above and check the printed chapter number inside the PDF against the registry table. This prevents confusion if your downloaded copy has outdated numbering.
- Read related chapters together. Chapter 5 (Genome Engineering) and Chapter 4 (DNA Fingerprinting) both build on the recombinant DNA basics from Chapters 1 and 2. Study them as a linked pair rather than in isolation.
- Treat Chapter 8 as a continuation. The “Box 1” label may seem unusual, but it is the official chapter title. Cross-check it against your school’s syllabus copy to confirm it is included in your curriculum.
- Check the CBSE syllabus for unit marks. This registry does not carry verified unit-wise marks distribution for Biotechnology. Visit the official CBSE website to confirm which chapters are examined and their weightage in the current session.
- Prioritise the longest chapters. Chapters 3 (40 pages), 4 (44 pages), and 11 (36 pages) are the most detail-heavy. Keep printed copies of these near exam time and allocate more revision hours to them.
Other NCERT Resources for Class 12 Students
If you are studying Biotechnology as an elective, you may also need textbooks for your core subjects. Visit the Class 12 NCERT Books hub to find PDFs and chapter lists for all prescribed subjects, including Physics, Chemistry, Mathematics, English, and Hindi.
Many Biotechnology students also take Biology as a core subject. The Class 12 Biology NCERT Books page lists the two-part Biology textbook (Part I and Part II) with separate chapter tables for each volume. Unlike Biotechnology’s single book, Biology’s split structure requires careful tracking of which topics fall into which volume.
Frequently Asked Questions on the NCERT Biotechnology Book
Is the NCERT Class 12 Biotechnology book the same for every CBSE school offering the subject?
Yes, all CBSE schools follow the same official NCERT textbook for Class 12 Biotechnology. However, confirm with your school that Biotechnology is your assigned elective, as not all schools offer it. Some schools may substitute it with other electives like Computer Science or Informatics Practices.
How many chapters are in the NCERT Class 12 Biotechnology textbook?
The textbook contains 13 chapters. Chapter 8 is labelled “Box 1″ in the official edition, which sometimes confuses students into thinking a topic is missing. It is not—”Box 1” is the correct official title.
Does the NCERT Biotechnology book cover CRISPR and genome editing?
Yes. Chapter 5, “Genome Engineering,” is dedicated to CRISPR-Cas9 technology and genome editing strategies. This chapter is 30 pages and is a core topic for Class 12 Biotechnology.
Why is Chapter 8 of the NCERT Biotechnology book labelled ‘Box 1’ instead of a chapter title?
Chapter 8 is officially titled “Box 1” in the current NCERT edition. This unusual label reflects the chapter’s format in the original textbook design. It is a full chapter (24 pages) covering applied cell and tissue culture topics, not a supplementary box or missing section. Always check the PDF itself to confirm its content.
Where can I confirm the unit-wise marks distribution for Class 12 Biotechnology?
Unit-wise marks data for Biotechnology is not verified in this registry. Visit the official CBSE website and download the current session’s Biotechnology syllabus PDF. The syllabus document lists the exact marks allocated to each unit and chapter, and it is updated annually.
Reference: NCERT Class 12 Biotechnology textbook, official edition on ncert.nic.in.