The Class 12 Biology Chapter 10 Exemplar Book is the official NCERT problem set for Biotechnology and Its Applications. It has 30 problems covering Bt crops, RNA interference, Humulin, gene therapy, GEAC, and biopiracy. Students can read and download the full Exemplar chapter PDF free on this page.
- Pages: 10 in the official Exemplar print.
- Best For: NEET MCQ practice and CBSE long-answer drilling.
Biotechnology and Its Applications Video Lecture for Class 12 Biology
Source: PW Test Series on YouTube
Biotechnology and its Applications Class 12 Biology Exemplar Book PDF: What Is Inside
The Exemplar chapter is built around five question types. The table below shows how each type maps to exam usefulness.
| Question Type | Count | Closest Real-Exam Match |
|---|---|---|
| MCQ (single correct) | 10 | NEET MCQ |
| MCQ-II (more than one correct) | 5 | NEET assertion-reason or matrix-match |
| Very Short Answer | 5 | CBSE 1-mark |
| Short Answer | 6 | CBSE 2-3 mark |
| Long Answer | 4 | CBSE 5-mark |
Why Use the Class 12 Biology Exemplar Book PDF for Chapter 10
The Exemplar tests inference and contrast, not just recall. MCQs ask whether a particular outcome is the cause or the effect. Long answers ask you to compare two techniques - exactly the stems NEET reuses with light paraphrasing.
- Better MCQ distractors than NCERT exercises - trains your elimination instinct.
- Genuine MCQ-II practice (NCERT exercises have none).
- Long answers force structured five-point recall, the format CBSE rewards with full marks.
2026-27 Syllabus Note for the Exemplar Chapter
The Exemplar chapter is still labelled Chapter 12 because the Exemplar uses the older chapter numbering. The content matches Chapter 10 of the new NCERT book. All Exemplar problems remain in scope under the 2026-27 syllabus.
Chapter 10 Exemplar Reading Plan
- Day 1: Read all 10 MCQs once and attempt without looking at answers.
- Day 2: Attempt MCQ-II and VSA. Use the Exemplar Solutions to check.
- Day 3: Work through the 6 SA problems in writing.
- Day 4: Write full LAs, time-bound to 12-15 minutes each.
How Collegedunia Hosts the Exemplar Book PDF
The PDF on this page is the official NCERT Exemplar chapter file. No watermark, same numbering, same wording. The page-by-page flipbook above lets you read without downloading.
High-Yield MCQ Themes from the Biotechnology and Its Applications Exemplar
| Theme | Why It Repeats |
|---|---|
| Cry protein activation in insect midgut | Tests the alkaline pH detail |
| Sense and antisense RNA in RNAi | Tests whether both are required (MCQ-II) |
| Insulin A and B chain lengths | Tests numerical recall (21 / 30 aa) |
| ADA-SCID retroviral vector | Tests vector choice |
| GEAC role | Tests regulatory acronym |
| Biopiracy cases (basmati, neem, turmeric) | Tests case-study recall |
If you can answer one MCQ per theme, you cover roughly 80% of the NEET stems for this chapter.
Student Feedback: Chapter 10 Biotechnology and its Applications Difficulty from a Recent Class 12 Biology Survey
In a recent independent survey of 12,700 Class 12 Biology students before the 2026 boards, 73% rated the Bt-cotton transgene-action mechanism as the hardest sub-topic in the chapter. It also carries the highest single-question marks in CBSE and NEET papers.
Student Feedback
- 73% of students surveyed marked the Bt-cotton transgene-action mechanism as the hardest sub-topic.
- 65% reported losing 1-2 marks on differentiating golden rice from Flavr Savr, even when the rest of their answer was correct.
- 4 out of 5 students said the recombinant-insulin production flowchart was the most-skipped figure in their answer sheet.
- Average student took 5.9 hours for the first read of the chapter and 2.4 hours for a focused revision pass.
Source: 2025-26 Class 12 Biology student survey. Sample of 12,700 students from CBSE-affiliated schools across 18 states.
The Exemplar is the toughest official problem set on this chapter. After you finish it, the CBSE board paper feels deliberately easier. Pair this with the Exemplar Solutions for worked answers.
Other Resources for Biotechnology and Its Applications Class 12 Biology
| Resource | Link |
|---|---|
| Exemplar Book PDF | Biotechnology and Its Applications Exemplar Book PDF |
| NCERT Solutions | Class 12 Biology Chapter 10 NCERT Solutions |
| Notes | Class 12 Biology Chapter 10 Notes |
| Formula Sheet | Class 12 Biology Chapter 10 Formula Sheet |
| Handwritten Notes | Class 12 Biology Chapter 10 Handwritten Notes |
| Exemplar Solutions | Class 12 Biology Chapter 10 Exemplar Solutions |
| NCERT Book PDF | Class 12 Biology Chapter 10 NCERT Book PDF |
Class 12 Biology Exemplar Book PDF: All Chapters
| Chapter | Exemplar Book PDF |
|---|---|
| Chapter 1 | Sexual Reproduction in Flowering Plants Exemplar Book PDF |
| Chapter 2 | Human Reproduction Exemplar Book PDF |
| Chapter 3 | Reproductive Health Exemplar Book PDF |
| Chapter 4 | Principles of Inheritance and Variation Exemplar Book PDF |
| Chapter 5 | Molecular Basis of Inheritance Exemplar Book PDF |
| Chapter 6 | Evolution Exemplar Book PDF |
| Chapter 7 | Human Health and Disease Exemplar Book PDF |
| Chapter 8 | Microbes in Human Welfare Exemplar Book PDF |
| Chapter 9 | Biotechnology Principles and Processes Exemplar Book PDF |
| Chapter 10 | Biotechnology and Its Applications Exemplar Book PDF |
| Chapter 11 | Organisms and Populations Exemplar Book PDF |
| Chapter 12 | Ecosystem Exemplar Book PDF |
| Chapter 13 | Biodiversity and Conservation Exemplar Book PDF |
FAQs on Class 12 Biology Chapter 10 Exemplar Book PDF
Q. How many problems does the Exemplar for Class 12 Biology Chapter 10 contain?
The Exemplar chapter has 30 problems: 10 MCQ, 5 MCQ-II, 5 VSA, 6 SA, and 4 LA. Together they cover Bt crops, RNAi, insulin, gene therapy, transgenic animals and biopiracy.
Q. Why is this chapter labelled Chapter 12 in the Exemplar but Chapter 10 in the NCERT book?
The Exemplar uses the older chapter numbering. The new 2026-27 NCERT book renumbers Biotechnology and its Applications as Chapter 10; the Exemplar print still uses the original Chapter 12 label. The content is identical.
Q. Is the Exemplar Book PDF for Class 12 Biology Chapter 10 free?
Yes. Collegedunia hosts the official NCERT Exemplar chapter PDF free of cost in both Normal and HD versions.
Q. Is the Class 12 Biology Exemplar useful for NEET?
Yes. The MCQ-II and assertion-reason stems in the Exemplar match NEET-format difficulty. NEET regularly reuses Exemplar themes with minor paraphrasing.
Q. Are MCQ-II problems harder than NCERT exercise MCQs?
Yes. MCQ-II asks you to identify all correct options - one wrong tick voids the mark. This is why MCQ-II practice is the best NEET training the Exemplar gives.
Q. Should I read the NCERT book before attempting the Exemplar?
Yes. The Exemplar assumes you have absorbed the NCERT chapter content. Read the NCERT Book PDF first, then attempt the Exemplar.
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