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Preparing for the NEET Biology section requires a strong understanding of NCERT concepts and consistent practice with previous year question papers. Biology carries the highest weightage in NEET with 90 questions out of 180, making it the most scoring section of the exam. Analysing previous year NEET Biology question papers helps students understand the exam pattern, frequently asked topics, and chapter-wise weightage since most questions are directly based on Class 11 and Class 12 NCERT textbooks.
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Practising NEET Biology previous year question papers not only improves conceptual clarity but also helps aspirants develop speed, accuracy, and exam confidence. Regular practice enables students to identify important chapters and understand the level of questions asked in the examination.
This article provides NEET Biology question papers from 2018 to 2025 in PDF format, along with answer keys, important questions, and chapter-wise weightage analysis. Solving these papers can help NEET 2026 aspirants improve their preparation and maximise their score in the NEET exam Biology section.
Candidates can refer to the chapter-wise distribution of Biology questions from NEET question papers to gain a clearer understanding of the exam pattern. This analysis highlights the chapters with the highest number of questions, helping students prioritise important topics during preparation. By focusing on the top 100 questions in NEET Biology to score 330+ marks, students can increase their scores and improve overall performance in the Biology section.
Year | Question paper PDF for NEET Biology |
|---|---|
| 2025 | NEET 2025 Biology question paper PDF |
| 2024 | NEET 2024 Biology question paper PDF |
| 2023 | NEET 2023 Biology question paper PDF |
| 2022 | NEET 2022 Biology question paper |
2021 | |
2020 | |
2019 | |
2018 |
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Biology is considered one of the easiest sections in the NEET exam:
Here are some NEET biology previous year questions to give an idea about the NEET 2026 exam level.
Q. 1 The Correct sequence of phases in the cell cycle is:
Option 1: M → G1 → G2 → S
Option 2: G1 → G2 → S → M
Option 3: S → G1 → G2 → M
Option 4: G1 → S → G2 → M
The correct answer is option 4) G1 → S → G2 → M
Solution:
Interphase -
Interphase represents the phase between two successive M-phases.
wherein
The interphase lasts more than 95% of the duration of the cell cycle, also called the resting phase.
The cell cycle is divided into two phases: interphase and M- M-phase. During interphase, the cell grows and makes a copy of its DNA. During the M phase, the cell separates its DNA into two sets and divides its cytoplasm forming two new cells. Interphase is divided into three subphases i.e. G1 phase, S phase, and G2 phase. Thus, the sequence of the phase of the cell cycle is G1 → S → G2→ M
Q. 2 The fruit fly has 8 chromosomes (2n) in each cell. During the interphase of Mitosis, if the number of chromosomes at G₁ phase is 8, what would be the number of chromosomes after S phase?
Option 1: 8
Option 2: 16
Option 3: 4
Option 4: 32
Solution:
The correct option is (a)
It will be the same as that of G1, hence the answer is 8.
Refer to the chapter-wise Biology question patterns from previous NEET papers:
The table below shows the number of NEET questions from different Botany chapters in previous years. This division helps aspirants identify the most important chapters. Aspirants can use this data to distribute study time effectively. Knowing the NEET biology chapter-wise weightage supports strategic preparation. Students can give special focus to commonly asked concepts. Continuous practice and revision of high-weightage Botany topics can improve performance in the NEET Biology section.
| Botany Important Chapters for NEET | 2021 | 2022 | 2023 | 2024 | 2025 | Total |
|---|---|---|---|---|---|---|
| Sexual Reproduction in Flowering Plants | 8 | 6 | 3 | 2 | 3 | 22 |
| Plant Kingdom | 0 | 3 | 3 | 1 | 6 | 13 |
| Photosynthesis in Higher Plants | 2 | 2 | 3 | 3 | 2 | 12 |
| Respiration in Plants | 1 | 1 | 2 | 2 | 0 | 6 |
| Anatomy of Flowering Plants | 3 | 3 | 3 | 4 | 2 | 15 |
| Principles of Inheritance & Variation | 2 | 4 | 5 | 6 | 5 | 22 |
| Cell: The Unit of Life | 3 | 3 | 2 | 4 | 3 | 15 |
| Plant Growth and Development | 1 | 2 | 2 | 2 | 1 | 8 |
| Morphology of Flowering Plants | 4 | 1 | 3 | 5 | 3 | 15 |
| Biological Classification | 2 | 2 | 0 | 2 | 1 | 7 |
| Respiration in Plants | 1 | 1 | 2 | 2 | 0 | 6 |
| Cell Cycle and Cell Division | 5 | 6 | 6 | 5 | 0 | 22 |
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The following table indicates the number of questions asked from Zoology chapters in previous NEET exams. The analysis helps aspirants in recognising key topics and concentrating on high-weightage topics. Important concepts such as human physiology, reproduction, and evolution are frequently asked, and therefore, Zoology is an important part of NEET Biology preparation.
Zoology important chapters for NEET | 2021 | 2022 | 2023 | 2024 | 2025 | Total |
|---|---|---|---|---|---|---|
| Molecular Basis of Inheritance | 11 | 9 | 7 | 6 | 7 | 40 |
| Human Reproduction | 3 | 4 | 3 | 4 | 7 | 21 |
| Biomolecules | 3 | 3 | 3 | 5 | 6 | 20 |
| Human Health and Disease | 4 | 4 | 4 | 4 | 7 | 23 |
| Animal Kingdom | 5 | 4 | 4 | 6 | 6 | 25 |
| Ecosystem | 3 | 4 | 2 | 1 | 5 | 15 |
| Organisms & Populations | 4 | 3 | 4 | 2 | 2 | 15 |
| Biotechnology: Principles & Processes | 8 | 6 | 5 | 7 | 4 | 30 |
| Microbes in Human Welfare | 3 | 3 | 3 | 4 | 2 | 15 |
| Body Fluids & Circulation | 0 | 2 | 1 | 2 | 0 | 5 |
| Chemical Coordination and Integration | 1 | 0 | 2 | 4 | 6 | 13 |
| Excretory Products and Elimination | 0 | 0 | 2 | 2 | 1 | 5 |
| Biotechnology & Its Applications | 3 | 4 | 2 | 2 | 3 | 14 |
| Evolution | 3 | 2 | 2 | 4 | 1 | 12 |
| Reproductive Health | 3 | 4 | 2 | 2 | 3 | 14 |
| Breathing and Exchange of Gases | 3 | 3 | 1 | 2 | 0 | 9 |
| Locomotion and Movement | 1 | 3 | 2 | 2 | 0 | 8 |
| Neural Control and Coordination | 0 | 0 | 2 | 1 | 0 | 3 |
| Structural Organisation in Animals | 5 | 4 | 5 | 2 | 3 | 19 |
| Biodiversity and Conservation | 0 | 0 | 2 | 5 | 2 | 9 |
To download NEET biology questions with answers PDF, candidates need to follow the below-mentioned steps:
Visit the official website of NTA, nta.ac.in.
Search for the NEET question papers section.
Select the year and NEET paper.
Choose the NEET question paper set, and select the specific set that you want to download.
Download the previous year's NEET question paper PDF.
Open and view the NEET question paper, which can be opened in PDF format.
Based on the previous year analyis here's some conclusion about NEET biology difficulty level which can help NEET 2026 aspirants
Preparing for the medical entrance exam with the best books for NEET 2026 will make the preparation more convenient. Aspirants can go through the best books for NEET Biology from the table with the author’s name.
Here are some best books for NEET 2026 preparations. Aspirants can refer these books once they have completed the complete syllabus from NCERT biology class 11 and 12.
Book | Author |
|---|---|
Objective Biology (volumes 1 & 2) | GR Bathla |
Biology Classes 11 and 12 (Volume 1 & 2) | Pradeep Publications |
Objective Biology (Volume 1, 2, and 3 along with Practice Papers) | Dinesh Publications |
A Class Book for Botany | A C Dutta |
Objective Biology (volumes 1 and 2) | Truemann Publications |
The NEET Biology section is vast and requires a clear strategy to finish on time. Students can use the NEET Biology question paper PDF to improve their preparation.
To perform well in the Biology section, students should follow a smart problem-solving strategy.
These strategies help students improve both speed and accuracy in the NEET exam.
Frequently Asked Questions (FAQs)
The NEET 2026 Biology section contains 90 questions, including 45 from Botany and 45 from Zoology, carrying a total of 360 marks.
Yes, solving previous year NEET Biology papers helps students understand the exam pattern, important chapters, and frequently asked questions.
Most NEET Biology questions are directly or indirectly based on NCERT Class 11 and Class 12 textbooks, making them essential for preparation.
On Question asked by student community
Hello Koushisk,
Yes, you can absolutely attend NEET UG 2025 as an engineering student. There are no restrictions on appearing for NEET UG based on your current field of study. Since you've completed your 12th grade with the required subjects (Physics, Chemistry, Biology, and English), you are eligible to reappear
Sorry aspirant, the information you provided is unclear and difficult to understand. Could you please clarify the following:
Hello student,
I understand that you have a paramedical course without NEET cutoff and obtained a score of 172.
However, I'd like to clarify a few things to provide the most accurate guidance:
Hello,
Yes, you can participate in NEET Round 3 (Mop-up round) even if you skip Round 2 after not being allotted a seat in Round 1.
However, you don’t need to re-register or pay the security deposit again, provided you didn’t get a seat in Round 1 and haven't opted
Hello,
If you did not get a seat in the first round of NEET counselling and also do not wish to remain in the counselling process in order to prepare for a long term instead of proceeding further, then you can follow these steps below to withdraw from the counselling:
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