CUET Biology Previous Year Question Paper PDF Download (2026 Updated)
Master the CUET Biology exam with our comprehensive collection of memory-based previous year question papers. Download PDF sets for 2024, 2025, and practice for the upcoming CUET 2026 exam effectively.
Practicing with CUET Biology previous year question papers is a proven strategy for success in the CUET UG entrance exam. The CUET UG 2026 exam is scheduled to be held from 11 May to 31 May 2026. While the NTA releases official question papers via response sheets, our expert Result91 team compiles memory-based papers to help you understand the exam pattern and question difficulty. Review these materials to refine your strategy and boost your final score.
CUET Biology Question Paper
The CUET Biology Question Paper 2026 is strictly aligned with the official NTA syllabus. Using these papers for practice is essential for mastering the exam format. We provide access to high-quality PDF downloads of past papers, making it easier for students to prepare efficiently and share resources with their peers. The official CUET Biology 2026 question paper will be updated on this page as soon as it becomes available.
CUET UG Biology Question Paper 2026
Download our CUET Biology Question Paper 2026 PDFs in high-definition quality to ensure a seamless study experience. Analyzing these documents allows you to identify your weak points and focus on high-yield topics. Refer to our detailed CUET Biology syllabus 2025 to ensure your preparation covers all five core units.
- Reproduction,
- Genetics and Evolution,
- Biology and Human Welfare,
- Biotechnology and Its Applications,
- Ecology and
- Environment
CUET Biology Question Paper 2026 Pattern
The NTA has updated the CUET UG Biology exam pattern for 2026. The test will now be conducted over a 60-minute duration with a focus on compulsory questions. The marking scheme awards +5 marks for every correct answer, with a -1 penalty for incorrect responses. Ensure you are familiar with these changes before taking the CUET UG application 2026 process.
CUET UG Biology Previous Year Question Paper 2025 PDF Download
We have curated the CUET UG 2024 and 2025 Biology question papers with solutions below to assist your 2026 exam preparation. We recommend attempting these papers in a timed environment first, then cross-checking your answers against our solutions to identify areas for improvement.
| CUET Biology Paper with Solutions PDF | |
| CUET Biology Question Paper 2024 | Answer key |
| CUET Biology Question Paper 2025 | Answer Key |
CUET Previous Year Biology Question Paper with Solutions
Watch our exclusive video walkthrough for a complete analysis of the CUET UG Biology exam pattern and answer keys. This will help you strengthen your grasp of the CUET 2026 exam requirements.
CUET Biology Question Paper with Answers 2024
The CUET Biology Question Paper 2024, along with the detailed answer key, is available to download. Our Result91 experts provide these comprehensive solutions to help you build a solid foundation for your upcoming entrance tests.
| S.No | Question | Answer |
| 1 | Match List I with List II |
|
| 2 | Match List I with List II |
|
| 3 | The beetle used as a biocontrol agent for aphids and mosquitoes is | Ladybird |
| 4 | The downstream processing method involves | Purification |
| 5 | Which of the following is not the correctly matched pair of organisms and its respective cell enzyme? |
Alage – Methylase
|
| 6 | Arrange the following steps involved in the transformation of bacteria in a sequence from initiation to end. | 2 – B, A, C, E, D |
| 7 | Which of the following statements are true? |
Milk obtained from Rosie…
Transgenic animals help us to understand… |
| 8 | Match List I with List II |
1 – Antitrypsin – Treat Emphysema CryIAc – Cotton Ballworms
Antisense RNA – Meloidegyne Incognitia cryIAB – Corn Borer |
| 9 | When an insect feeds on the Bt plant, the insect dies due to the conversion of inactive protein to active protein in |
Alkaline pH of the Gut
|
| 10 | Match List I with List II |
|
| 11 | The process of mineralisation by microorganisms helps in the release of |
Inorganic nutrients from humans
|
| 12 | Choose the correct statement with respect to decomposition from the following |
Decomposition rate of detritus depends upon the chemical nature of it
Humification follows mineralisation |
| 13 | Which of the following statements is incorrect with respect to Medical Termination of pregnancy? |
MTPs can be performed even after 24 weeks but with the opinion of 2 registered medical practitioners on specific grounds
|
| 14 | Match List I with List II |
Standing State – Amount of mineral nutrients in the soil at a given time
Secondary Productivity – Rate of formation of organic matter by consumers Standing Crop – Mass of living matter in a tropical at a given time Net Primary Productivity – Available Biomass for the Consumption of Heterotrophs |
| 15 | Match List I with List II |
ZIFT – Transfer of fertilized eggs up to 8 blastomeres into the fallopian tube
ICSI -Formation of the embryo in vitro by injecting sperm directly into the ovum IUI – Transfer of semen from a healthy donor into the uterus artificially IUT – Transfer of embryo with more than 8 blastomeres into fallopian tube |
| 16 | Saheli – an oral contraceptive pill, also known as once a week pill was developed by | CDRI |
| 17 | Which of the following is not a characteristic of the stable biological community |
All the species are equally important in a stable community and the absence of anyone leads to instability
|
| 18 | In the river poppet hypothesis, the river signifies | Species |
| 19 | The scientist who proved the richness directly correlated with the stability of the community was | David Tilman |
| 20 | Among the vertebrates, which of the following is the most species-rich group? | Fishes |
| 21 | Cells present in the mature pollen grains are |
Vegetative Cell and Generative Cell
|
| 22 | Match the Following |
Filiform apparatus – Guides Pollen tube into the synergid Tapetum – Nourishes the Pollen Grain
Exine – Made up of sporopollenin Attachment of ovule to the placenta |
| 23 | The primary endosperm nucleus is the product of | Triple fusion |
| 24 | In humans, mammary glands are divided into | 15 – 20 |
| 25 | Sex in human embryos is determined by |
X and Y chromosomes of sperm
|
| 26 | Arrange the following stages of oogenesis in order of occurrence | 2 (B, C, D A) |
| 27 | Which of the following pair of contrasting traits was not studied by Mendel? |
1 (Pink and White Flowers)
|
| 28 | Failure of Chromatids to segregate during the cell division cycle results in? | 3 (Aneuploidy) |
| 29 | Select the correctly matched pair about sickle cell anaemia | 1 (C and D only) |
| 30 | Match the List-I with List-II |
1 (A – II, B – IV, C – I, D – III)
|
| 31 | Which of the following statements are incorrect with respect to nucleotides? | 3 (B and D only) |
| 32 | Arrange the given steps of DNA fingerprinting in the sequence from initiation to end. | 3 – (B, A, D, C) |
| 33 | Nucleosome is associated with…molecules of histones | 4 (Eight) |
| 34 | Select the observations drawn from the human genome project which are correct |
3 (A, C and E only)
|
| 35 | Analogous structures are a result of |
1 – Convergent evolution
|
| 36 | Which of the following does not affect the Hardy-Wember equilibrium? | 3 – Gene Pool |
| 37 | Which of the following primates was more like an ape? | 2 – Dryopithecus |
| 38 | Match List I with List II |
1 – (A – II), (B – IV), (C – I), (D -III)
|
| 39 | Identify the Incorrect Statements |
3 (D only – Pneumonia is caused by Salmonella)
|
| 40 | Match List I with List II |
Cytokine Barriers – Interferons Physical Barriers – Mucus Coating Cellular Barriers – Phagocytosis
Physiological Barriers – Tears from Eyes |
| 41 | Smack is chemically |
1 – Diacetyl Morphine
|
| 42 | Antibodies are secreted by | 2 – B-Cells |
| 43 | In sewage treatment, flocs are |
3 – The masses of bacteria associated with fungal filaments
|
| 44 | Full Form of GEAC |
Genetic Engineering Approval Committee
|
| 45 | In a country at any time, the popular has the same number of young and mature ones. What type of growth does it reflect? | 3 – Stable |
| 46 | Two closely related species can co-exist indefinitely and violate Gause’s ‘Competitive Exclusion Principle by’ | 2 |
| 47 | In which ecosystem is the biomass of primary consumers greater than producers? | 4 – Sea |
| 48 | Which of the following is not a sexually transmitted disease? | 2 – Filariasis |
FAQs
The CUET Biology syllabus is categorized into five critical sections: Reproduction, Genetics and Evolution, Biology and Human Welfare, Biotechnology and Its Applications, and Ecology and Environment.
The CUET Biology section consists of 50 compulsory multiple-choice questions (MCQs). Candidates are expected to attempt all 50 questions to maximize their potential score.