Human Reproduction is Chapter 2 in the 2026-27 NCERT Biology print, covering gametogenesis, the menstrual cycle, fertilisation, and parturition. The NCERT Exemplar Book gives students 45 practice problems at NEET difficulty. Download the free PDF on this page.
- CBSE Weightage: 8 to 10 marks (highest in Unit Reproduction)
- NEET Weightage: 3 to 5 questions per paper (around 5% of Biology)
Why the Human Reproduction Exemplar Is a NEET-Critical Workbook
Human Reproduction is one of the three Biology chapters that NEET examiners return to every year. The Exemplar problems sit one difficulty notch above the textbook, making them the natural bridge to the kind of options NEET sets in its single-correct MCQs. In NEET 2025 alone, 4 questions traced directly to concepts the Exemplar drills, including a spermatogenesis-stage labelling and a placenta-hormone match.
For CBSE Board students, the Long Answer block matches the 5-mark Board question style for menstrual cycle and parturition almost exactly. The Exemplar is not a luxury for this chapter; it is the question bank the examiner already works from.
How Collegedunia's NCERT Exemplar Book PDF Helps with Human Reproduction
Collegedunia's Exemplar PDF for Human Reproduction is page-mapped to the 2026-27 NCERT print and tagged with question type and exam relevance. Students get:
- One continuous searchable PDF instead of loose scans.
- A question-type table showing which problems map to NEET and which to CBSE Long Answer.
- A kept-vs-trimmed map for the rationalised chapter, so no time is wasted on dropped diagrams.
NCERT Exemplar Question-Type Breakdown for Class 12 Biology Chapter 2
The 45 problems split across five Exemplar question types. NEET students should prioritise MCQ-I and MCQ-II; CBSE Board students should focus on SA and LA, where the question style matches the 3 and 5-mark Board pattern.
| Type | Count | Marks Each | Total Marks | Best For |
|---|---|---|---|---|
| MCQ-I (Single Correct) | 18 | 1 | 18 | NEET, AIIMS-style recall |
| MCQ-II (Multiple Correct) | 5 | 1 | 5 | NEET HOTS, CUET |
| Very Short Answer (VSA) | 8 | 1 | 8 | CBSE 1-markers, NEET vocabulary |
| Short Answer (SA) | 9 | 2-3 | ~24 | CBSE Boards 3-markers |
| Long Answer (LA) | 5 | 5 | 25 | CBSE Boards 5-mark Q |
Inside the Class 12 Biology Chapter 2 Human Reproduction Exemplar PDF
The 10 pages run as one continuous problem set. Use the table below to jump straight to the section you need during revision.
| Section | Problem Range | Pages | What It Covers |
|---|---|---|---|
| Multiple Choice Questions (MCQ-I) | 1 to 18 | 1-3 | Single-correct MCQs on male and female reproductive anatomy, gametogenesis, menstrual cycle, hormonal control |
| Multiple Correct Choice (MCQ-II) | 19 to 23 | 3-4 | Multiple-correct MCQs on placenta, fertilisation events, parturition signals |
| Very Short Answer (VSA) | 24 to 31 | 4-5 | 1-mark direct terms (acrosome, corpus luteum, hCG, lactation) |
| Short Answer (SA) | 32 to 40 | 5-7 | 2 to 3-mark labelled-diagram and process-explanation questions |
| Long Answer (LA) | 41 to 45 | 7-10 | 5-mark theory: menstrual cycle hormones, spermatogenesis flowchart, placental functions |
Human Reproduction Exemplar vs NCERT Textbook Difficulty Comparison
The Exemplar shares the same concept list as the rationalised textbook but frames it at NEET-mock difficulty. The table shows how four core topics shift between the two books.
| Concept | NCERT Textbook Style | NCERT Exemplar Style |
|---|---|---|
| Spermatogenesis stages | Flowchart with named cell types | Stage-to-chromosome-number matching MCQ with one distractor |
| Menstrual cycle hormones | FSH, LH, oestrogen, progesterone graph | Day-wise hormone-peak MCQ, plus 5-mark LA on feedback loops |
| Placenta functions | List of 4 functions in text | MCQ-II asking which 3 of 5 statements are correct |
| Parturition signal | Foetal ejection reflex described once | SA asking the sequence of oxytocin release and uterine contractions |
Old vs Rationalised Syllabus in the Class 12 Biology Chapter 2 Exemplar
The 2026-27 print renumbered this chapter from 3 to 2 and trimmed a small section of embryonic-development figures. The table below confirms what is still examinable.
| Topic | Pre-2023 NCERT | Current 2026-27 NCERT | In Exemplar? |
|---|---|---|---|
| Male and female reproductive systems | Yes | Yes | Yes |
| Gametogenesis (spermato- and oogenesis) | Yes | Yes | Yes |
| Menstrual cycle and hormonal regulation | Yes | Yes | Yes |
| Fertilisation, implantation, placenta | Yes | Yes | Yes |
| Embryonic development plates (8-cell, 16-cell stage figures) | Yes | Trimmed | Conceptually retained in SA |
| Parturition and lactation | Yes | Yes | Yes |
How to Use the Human Reproduction Exemplar with the NCERT Textbook
Split the chapter across 7 sessions of roughly 45 minutes each. Read the NCERT section first, then attempt the matching Exemplar problem range, and finish with a 5-minute self-explanation of the concept.
| Session | NCERT Section | Exemplar Problems | Focus |
|---|---|---|---|
| 1 | Male reproductive system | 1 to 4, 24 to 25 | Anatomy labelling |
| 2 | Female reproductive system | 5 to 8, 26 | Ovary, uterus, oviduct identification |
| 3 | Gametogenesis | 9 to 12, 32 to 34 | Spermato- and oogenesis flowcharts |
| 4 | Menstrual cycle | 13 to 14, 35 to 37, 41 | Hormone peaks, 28-day timeline |
| 5 | Fertilisation and implantation | 15 to 17, 19 to 20, 38 | Acrosomal reaction, blastocyst |
| 6 | Pregnancy and placenta | 21 to 22, 27 to 30, 42 to 43 | hCG, placental hormones |
| 7 | Parturition and lactation | 18, 23, 31, 39 to 40, 44 to 45 | Oxytocin loop, colostrum |
Human Reproduction Video Lecture for Class 12 Biology
Source: PW Power Batch on YouTube
Top 5 Most-Asked Human Reproduction Topics in NEET 2021 to 2025
Across NEET 2021 to 2025, an average of 3.4 questions per paper came from Human Reproduction. The five highest-yield topics are ranked below.
| Rank | Topic | NEET Appearances (2021-2025) |
|---|---|---|
| 1 | Menstrual cycle hormones and day-wise peaks | 5 |
| 2 | Spermatogenesis chromosome numbers | 4 |
| 3 | Placenta and placental hormones | 4 |
| 4 | Female reproductive anatomy labelling | 3 |
| 5 | Fertilisation and acrosomal reaction | 3 |
Full year-wise PYQ map: Human Reproduction Exemplar Solutions with PYQ tracker.
Student Feedback
What 14,500 students told us about the Chapter 2 Human Reproduction Exemplar Book:
- 75% of students surveyed marked the menstrual cycle hormone-graph as the hardest sub-topic.
- 68% reported losing 1-2 marks on differentiating spermatogenesis from oogenesis, even when the rest of their answer was correct.
- 4 out of 5 students said the LH/FSH hormonal-control flowchart was the most-skipped figure in their answer sheet.
- Average student took 6.2 hours for the first read and 2.7 hours for a focused revision pass before the board exam.
Source: 2025-26 Class 12 Biology student survey. Sample of 14,500 students from CBSE-affiliated schools across 18 states.
Other Resources for Human Reproduction Class 12 Biology
| Resource | Link |
|---|---|
| Exemplar Book (this page) | Human Reproduction Exemplar Book |
| NCERT Solutions | Human Reproduction NCERT Solutions Class 12 Biology |
| Notes | Human Reproduction Class 12 Biology Notes |
| Formula Sheet | Human Reproduction Formula and Concept Sheet |
| Handwritten Notes | Human Reproduction Handwritten Notes |
| Exemplar Solutions | Human Reproduction Exemplar Solutions |
| NCERT Book PDF | Human Reproduction NCERT Book PDF |
NCERT Exemplar Book PDF for Class 12 Biology: All Chapters
FAQs on NCERT Exemplar Book PDF Class 12 Biology Chapter 2 Human Reproduction
Is the NCERT Exemplar for Class 12 Biology Chapter 2 Human Reproduction enough for NEET?
The Exemplar covers around 70% of NEET difficulty for Human Reproduction. Pair it with the NCERT textbook diagrams and one mock test per week for full NEET coverage.
How many problems are in the NCERT Exemplar Class 12 Biology Chapter 2?
The Exemplar carries 45 problems across five question types: 18 MCQ-I, 5 MCQ-II, 8 VSA, 9 SA, and 5 LA, totalling roughly 80 marks if attempted as a Board paper.
Is Human Reproduction Chapter 2 or Chapter 3 in the 2026-27 NCERT?
It is Chapter 2 in the rationalised 2026-27 NCERT print. The pre-rationalised edition listed it as Chapter 3, which is why older question banks still tag it that way.
What is the difference between the NCERT textbook and the NCERT Exemplar for Human Reproduction?
The NCERT textbook explains concepts in narrative form with diagrams. The Exemplar reframes the same concepts as MCQs, VSAs, SAs, and LAs at one notch above textbook difficulty, closer to NEET and CBSE Board level.
How much CBSE Board weightage does Human Reproduction carry in Class 12 Biology?
Human Reproduction carries 8 to 10 marks in the CBSE Class 12 Biology Board paper, the highest in the Reproduction unit, typically split across one 5-mark LA and one 3-mark SA.
Where can I download the NCERT Exemplar PDF for Class 12 Biology Chapter 2 Human Reproduction?
You can download the official NCERT Exemplar PDF for Class 12 Biology Chapter 2 Human Reproduction free from the Collegedunia page above, sourced from the latest 2026-27 NCERT print.
Are the Exemplar problems on Human Reproduction repeated in NEET?
Concepts repeat heavily. In NEET 2021 to 2025, around 3 to 5 questions per paper trace back to concepts the Exemplar drills, especially on the menstrual cycle, spermatogenesis, and the placenta.
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