Rupali
Rupali Pruthi
Deputy Manager - Editorial
Updated on Dec 17, 2025 15:04 IST
NEET Biology questions carry the highest weightage in the exam. Prepare for the Biology section by downloading and solving Biology NEET Question Papers here. Find below the NEET Biology question papers PDFs with solutions for both Botany and Zoology sections for 2025, 2024, 2023 … to 2018.

The Biology section carries the highest weightage in the NEET UG exam. Find below the NEET Biology question papers PDFs with solutions for both Botany and Zoology sections for 2025, 2024, 2023 … to 2018. Download the PDFs for free and know the Biology NEET Questions. Read the article below for information on the Biology chapter-wise weightage in the NEET 2026 examination.

NEET Biology Question Paper with Answers PDF: Free Download

NEET Biology Question Paper PDFs: Free Download

NEET Biology Question Papers: The NEET exam consists of 180 questions from Physics, Chemistry and Biology (divided into two sub-sections- Zoology and Botany). Of these, 90 questions are from Biology, 45 questions each from Zoology and Botany. Biology forms the core of the NEET question paper. Hence, students aiming to appear for the NEET UG exam should focus more on Biology. Shiksha.com has shared below the collection of previous year NEET Biology questions. Students can download NEET Biology Question Papers PDFs for free and boost their NEET preparation now. 

The Biology NEET questions PDF serve as an important tool for preparation. To excel in this section, students need to practice NEET Biology PYQ. Get here the NEET previous years' question papers of Biology to enhance the sectional preparations. Along with the NEET Biology question bank PDFs, the important topics from Zoology and Botany are listed below, along with the NEET Biology chapter-wise weightage

The NEET 2026 exam is expected to be conducted in the first week of May 2026.

Table of contents
  • NEET 2025 Biology Question Paper
  • NEET 2024 Biology Question Paper
  • NEET 2023 Biology Question Paper
  • NEET 2022 Biology Question Paper
  • NEET 2021 Biology Question Paper
  • NEET 2020 Biology Question Papers
  • NEET 2020 Biology Question Paper and Answer Keys
  • NEET 2019 Biology Question Paper
  • NEET Exam Pattern 2026
  • Biology NEET Question Topics: Botany & Zoology
  • NEET Biology PYQ: Topic-wise Question Paper
View More

NEET 2025 Biology Question Paper

The NEET 2025 exam was conducted on May 4, 2025. Unlike the previous years, the NEET 2025 question papers had four sets, 45, 46, 47 and 48, without any subsets. Download the NEET question paper Biology 2025 below for the Botany and Zoology sections.

NEET 2025 Biology Question Papers
NEET 2025 Botany Question Paper NEET 2025 Zoology Question Paper

NEET 2024 Biology Question Paper

Download the NEET question paper Biology PDF of 2024 in English as well as Hindi below.

NEET 2024 Biology Question Papers
NEET 2024 Biology Question Paper - Q1 NEET 2024 Biology Question Paper - R1
NEET 2024 Biology Question Paper - T1 NEET 2024 Biology Question Paper - T6

NEET 2023 Biology Question Paper

This section brings the NEET 2023 Biology question paper of all four sets, along with the answer keys and solutions, as provided by one of the top coaching institutes. NEET question paper Biology PDF free download files are shared below.

NEET 2023 Biology Question Paper Sets and Answer Keys
NEET 2023 Biology Question Paper - E NEET 2023 Biology Question Paper - F
NEET 2023 Biology Question Paper - G NEET 2023 Biology Question Paper - H

NEET 2022 Biology Question Paper

Download the NEET 2022 Biology question paper along with the answer keys from the table below.

NEET 2022 Biology Question Paper Set and Answer Keys
NEET 2022 Biology Question Paper - Q NEET 2022 Biology Question Paper - R
NEET 2022 Biology Question Paper - S NEET 2022 Biology Question Paper - T

NEET 2021 Biology Question Paper

The NEET 2021 Biology question paper along with the solutions provided by top coaching institutes are shared here. Download NEET Biology questions with answers PDF below.  

NEET 2021 Biology Question Paper Set and Answer Keys
NEET 2021 Biology Question Paper - M2 NEET 2021 Biology Question Paper - N2
NEET 2021 Biology Question Paper - M5 NEET 2021 Biology Question Paper - P6

NEET 2020 Biology Question Papers

The table below brings the set-wise NEET 2020 Biology question papers.

NEET 2020 Biology Question Papers

NEET 2020 Biology Question Paper - E1

NEET 2020 Biology Question Paper - E2

NEET 2020 Biology Question Paper - E3

NEET 2020 Biology Question Paper - E4

NEET 2020 Biology Question Paper - E5

NEET 2020 Biology Question Paper - E6

NEET 2020 Biology Question Paper and Answer Keys

Here we bring the NEET 2020 Biology Question Paper along with the Answer Keys by Allen.

NEET 2020 Biology Question Paper H3 and Answer Keys

NEET 2019 Biology Question Paper

Download the NEET 2019 Biology question paper below:

NEET Biology Question Paper 2019

NEET Exam Pattern 2026

The NEET 2026 exam will be conducted in a paper-pencil-based mode for a duration of three hours. The multiple-choice questions carry four answer options. The NEET exam structure underwent some changes in 2025 in terms of the sectional division of questions and the total number of questions. The optional questions were removed, and the duration was reduced by 20 minutes. Each question carries four marks and for each wrong answer, one mark is deducted. There is no negative marking scheme involved for unanswered questions. The table below brings the latest NEET exam pattern

Subject

Number of Questions

Marks

Physics

45

180

Chemistry

45

180

Botany

45

180

Zoology

45

180

Total

180

720

NEET 2025 Biology Analysis

Biology was the easiest section in the question paper of NEET 2025. However, a few questions were unexpectedly challenging. The question types included multi-statement and match-the-column, assertion-and-reasoning. Diagrams from the NCERT textbook were also used in a few questions. A significant portion of the questions focused on the units covering Genetics and Biotechnology. According to experts, the section included a balanced mix of factual, conceptual, and analytical questions. Higher weightage was given to be Class 12 syllabus.

Also Read: NEET 2025 Biology Answer Key & Question Paper PDF Download 

NEET 2024 Biology Analysis

Biology questions in NEET 2024 were mostly NCERT-based. Questions were mostly from topics such as Human Physiology, Genetics, and Plant Physiology. Unlike previous years, this year's question papers featured six figure-based and three direction-based questions, along with 30 'match the following' and 17 statement-based questions. As 30 per cent of the questions were of the 'match the following' type, some students found the paper a bit lengthy. 

Also Read: NEET 2024 Paper Analysis: Check Difficulty Level of Question Paper and Exam Review

NEET 2023 Biology Analysis

NEET 2023 was conducted on May 7 from 2 pm to 5:20 pm and on June 6, for Manipur candidates. According to the student's reactions for the NEET 2023 examination, it was observed that the overall difficulty level of NEET 2023 was easy to moderate. Chemistry was the toughest section this year. Physics and Biology were of moderate level of difficulty. Owing to the lower level of the exam, the NEET 2023 cutoff was higher than the last year.

Also Read: NEET 2023 Analysis and Student Reactions

NEET 2022 Biology Analysis

Although the Biology section carried the highest weightage, the difficulty level of the section was the easiest among the total three sections. The questions from the Zoology section were of easy to moderate difficulty level. This section was mainly dominated by questions on the topics of Animal Husbandry, Biotechnology, Human Reproduction and Biomolecules.

The Botany area was considered to be moderate to tough. The majority of the questions were on the topics like Genetics, cell and cell cycle, diversity of life and structural organisation of plants. Check the detailed NEET 2022 analysis here.

Approximately 68-70 questions in the examination are directly from the NCERT books. Around 8-10 questions in the examination can be solved if you have solved the NEET question papers of previous years. Another 8-10 questions in the NEET Biology question paper are from the advanced level.

Biology NEET Question Topics: Botany & Zoology

Biology Weightage for NEET is the highest. Although experts suggest preparing the entire NEET syllabus thoroughly, aspirants must know the topics that are more important than the rest and carry a higher weightage in the NEET Biology Question Paper. Have a look at the NEET Biology chapter-wise weightage and topics below for Zoology and Botany.

NEET Biology Chapter-wise Weightage: Important Topics for Botany 

The NEET chapter-wise weightage is shared below for Botany section. Also, check below the NEET Botany important topics.

NEET Botany Chapters and Topics

Class 11

Average Number of Questions

Weightage of Chapter and Topic

Plant Kingdom

Kingdom plantae-GymNosperms

Kingdom plantae-bryophytes

Kingdom plantae-pteridophytes 

1

3

1

2%

6%

2%

Plant Physiology-II-Photosynthesis In Higher Plants 

Dark Reaction C3-cycle, C4 cycle, Photorespiration, CAM cycle and Factors 

Introduction (Early experiments), site of photosynthesis  and photosynthetic pigments 

1

1

2%

2%

Cell Biology

Cell Division

Introduction, Procaryotic Cell 

Ribosome

Cell membrane 

 

1

2

1

2

2%

4%

2%

4%

Plant Physiology-II-Plant Growth and Growth Hormones 

Introduction, Discovering of PGR, Auxin, Gibberellins &  Cytokinins 

2

4%

Morphology of Flowering Plants 

Flowers

Seeds

2

1

4%

2%

Plant Physiology-II-Respiration in plants

Aerobic respiration- Link reaction and krebs cycle, Terminal oxidation, Respiratory balance sheet, Amphibolic pathway, Anaerobic respiration-Fermentation, Respiratory quotient 

1

2%

Anatomy of Flowering Plants 

Anatomy of plant parts

1

2%

Biological Classification 

Kingdom-Monera 

1

2%

Class 12

27

54%

Ecology-Ecosystem

Productivity, Decomposition, Energy flow, Food chain, Food  web, Ecological pyramids

3

6%

Sexual Reproduction in Flowering Plants

Fertilization and embryogenesis, Seed and Polyembryony  

Pollination 

Female Reproductive Part 

Male Reproductive Part 

2

1

1

1

4%

2%

2%

2%

Genetics-II 

Regulation of gene expression, HGP and DNA fingerprinting 

Nucleic Acids (The Search For Genetic Material, DNA, RNA

DNA Replication, Transcription, Genetic Code and Translation

1

5

3

2%

10%

6%

Ecology-Organisms and Population 

Adaptations, Population and Population interactions, Biotic  community 

Introduction, Abiotic factors, Responses to abiotic factors

3

1

6%

2%

Genetics-I 

Polygenic Inheritance, Lethal Gene, Gene Interactions,  Chromosomal Theory Of Inheritance, Sex Determination,  Linkage, Sex Linkage, Recombination

Mutation,  Pedigree Analysis, Genetic Disorders 

Introduction, Mendelism, Monohybrid Cross, Dihybrid Cross,  Back Cross, Test Cross, Incomplete Dominance, Codominance, Multiple Allelism, Pleiotropy

2

1

1

4%

2%

2%

Ecology-Biodiversity and Conservation 

Conservation of biodiversity

Introduction, Level of biodiversity, Pattern of biodiversity,  Loss of biodiversity 

1

1

2%

2%

NEET Chapter-wise Weightage for Zoology & Important Topics

The table brings the list of important chapters and topics of Zoology along with their weightage in the NEET question paper. 

NEET Zoology Chapters and Topics

Class 11

Average Number of Questions

Weightage of Chapter and Topic

Biomolecule-II 

Enzymes

3

6%

Chemical Coordination and Integration 

Adrenal gland 

Pituitary gland 

Hormone-secreting other organs 

2

1

1

4%

2%

2%

Animal Kingdom-2 

Chordarta 

Amphibia

Cyclostomata/Pisces 

1

4

1

2%

8%

2%

Animal Kingdom-1 

Echinodermata 

Platyhelminthes and Aschelminthes 

1

1

2%

2%

Excretory Product and Their Elimination 

Urine formation 

Disease related with kidney 

1

1

2%

2%

Body fluids and circulation 

Heart and conduction

1

2%

Class 12

24

48%

Application Biology (Biotechnology) 

Principles of Biotechnology

Applications of Biotechnology in Medicine, Transgenic Animals

Processes of Biotechnology 

Applications of Biotechnology in Agriculture 

2

2

4

1

4%

4%

8%

2%

Biology In Human Welfare-Human Health and Disease 

Arthritis and Cancer 

Immune System and Common Human Diseases 

2

3

4%

6%

Human Reproduction and Reproductive Health 

Gametogenesis, Reproductive cycles 

Fertilisation, Embryonic, development 

Reproductive Health 

3

1

1

6%

2%

2%

Biology In Human Welfare-Microbes in Human Welfare 

Microbes in Human Welfare 

4

8%

Origin and Evolution 

Evidences of Evolution 

1

2%

NEET Biology PYQ: Topic-wise Question Paper

We bring to the candidates previous years' NEET questions from important Biology topics such as Cell Cycle and Cell Division, Microbes in Human Welfare, Reproduction in Organisms, Human Reproduction, Biological Classification and Living World. Candidates can download the question paper PDFs from the below table.

NEET Questions on Cell Cycle and Cell Division NEET Questions on Microbes in Human Welfare
NEET Questions on Reproduction in Organism NEET Questions on Human Reproduction
NEET Questions on Biological Classification NEET Questions on Living World
NEET Questions on Human Physiology

Read More:

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About the Author
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Rupali Pruthi
Deputy Manager - Editorial

With MA in English, Rupali has more than 15 years of editorial experience. At Shiksha.com, a subsidiary of Info Edge (India) Limited, she creates content and make prep guides for students preparing for competitive e

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