Table of Contents
CUET Biology Question Paper 2025 PDF is a necessary study material for all CUET UG aspirants. The CUET 2025 exam is scheduled from may 08 to June 01, 2025. We have shared the Memory Based CUET Biology Question Paper from the previous year on this page, This CUET Memory Based Biology Question Paper will help you understand the different forms of CUET Biology questions. Our Adda247 team provides the CUET Biology Question Paper 2025 with solutions after the exam conclusion. Candidates who have exams coming up must go through the CUET Memory Based Biology Question Paper given below to score good marks.
CUET Biology Question Paper 2025
The CUET Biology Question Paper 2025 is completely based on the CUET biology syllabus provided by NTA. The NTA releases the CUET Biology question paper in the form of response sheet that students can download and share it to their juniors or mates so that they can prepare for the upcoming exam. We also get access to the official CUET UG Biology question paper 2025 and provide the same to our students.
CUET UG Biology Question Paper 2025
The CUET Biology Question Paper 2025 is available on our digital platform in a Portable Document Format. You can utilize this feature and download the PDF in either standard or high-definition quality. By going through these documents, you can identify strengths and subjects that need additional attention in your study preparation. The CUET Biology syllabus 2025 is broken down into five sections. These units are:
- Reproduction,
- Genetics and Evolution,
- Biology and Human Welfare,
- Biotechnology, and Its Applications,
- Ecology, and Environment
CUET Biology Syllabus 2025 PDF Download
CUET Biology Question Paper 2025 Pattern
The NTA recently revised the CUET UG Biology exam 2025 pattern. As per the new pattern, the CUET UG Biology test paper will be held for 60 minutes. Now, there will be only compulsory questions in the exam. Students will get +5 marks for every correct answer while -1 mark will be deducted for every incorrect response. The examination will be held in online mode. The CUET UG application 2025 is currently active.
CUET UG Biology Question Paper 2024 PDF Download
Here we have provided the the CUET UG 2024 Biology Question paper with solutions PDF in given below. Students can download the pdf to practice the important questions for CUET 2025 exam. Make sure that your first answer the question yourself and then crosscheck your answers to overcome your mistakes.
| CUET Biology Paper with Solutions PDF | |
| CUET UG 2024 Biology Question paper | Answer key |
CUET Previous Year Biology Question Paper with Solutions
Watch the Video to know the CUET UG Biology 2024 paper analysis and answer key to make your preparation level of 2025 exam strong.
CUET Biology Question Paper with Answers
The CUET Biology Question Paper 2024 along with the answer key is available here. Our Adda247 team provides the CUET UG Biology question paper along with solutions to help students solidify their concept for the next year exam.
| 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 |
CUET Memory Based Biology Question Paper 2025 with Solutions: Last Year
Check the CUET Biology question paper with solutions from the previous year below. Go through these questions and solutions to know the important topics.
Q1. Match the following:
| List I | List II | ||
| (A) | Alexander Flemming | (i) | Propionibacterium sharmanii. |
| (B) | Citric acid | (ii) | Penicillin |
| (C) | Cyclosporin A, | (iii) | Aspergillus niger |
| (D) | Swiss cheese | (iv) | Trichoderma polysporum. |
(a) (A) = (ii), (B) = (iii), (C) = (iv), (D) = (i)
(b) (A) = (i), (B) = (iv), (C) = (iii), (D) = (ii)
(c) (A) = (iii), (B) = (ii), (C) = (iv), (D) = (i)
(d) (A) = (i), (B) = (ii), (C) = (iii), (D) = (iv)
Ans.(a)
Q2. Which of the following is a biological control that is being developed for use in the treatment of plant diseases?
(a) Baculoviruses
(b) Trichoderma
(c) Bacillus thuringiensis
(d) All of the above
Ans.(b)
Q3. Which of the following is also called as ‘brewer’s yeast’?
(a) Clostridium butylicum
(b) Saccharomyces cerevisiae
(c) Acetobacter aceti
(d) Aspergillus niger
Ans.(b)
Q4. Match the following:
| List I | List II | ||
| (A) | Streptokinase | (i) | blood-cholesterol lowering agents |
| (B) | Statins | (ii) | used in detergent formulations |
| (C) | Lipases | (iii) | Used in clarification of bottles fruit juices |
| (D) | Pectinases | (iv) | used as a ‘clot buster’ for removing clots from the blood vessels of patients who have undergone myocardial infarction |
(a) (A) = iii, (B) = ii, (C) = iv, (D) = i
(b) (A) = ii, (B) = iii, (C) = i, (D) = iv
(c) (A) = iv, (B) = i, (C) = ii, (D) = iii…
(d) (A) = iii, (B) = ii, (C) = i, (D) = iv
Ans.(c)
Q5. The family pedigree of Queen Victoria are known to have descendants of a particular disease. The disease was.
(a) Colour-blindness
(b) Haemophilia
(c) Sickle cell anaemia
(d) Thalassemia
Ans.(b)
Q6. Identify the correct complementary base pairing among the following?
(a) Adenine + Guanine, Cytosine + Thymine
(b) Thymine + Guanine, Adenine + Cytosine
(c) Adenine + Thymine, Cytosine + Guanine
(d) Adenine + Adenine, Cytosine + Thymine
Ans.(c)
Q7. What will happen if we add Azotobacter to a wheat crop?
(a) Soil will become rich in nitrogen content
(b) Soil will lose its water holding capacity
(c) The roots of the plants will die
(d) The roots of the plant will grow rapidly
Ans.(a)
Q8. Which of the following RNA provides the template during bacterial translation?
(a) t-RNA
(b) m-RNA
(c) r-RNA
(d) hn-RNA
Ans.(b)
Q9. Match the following
| List I | List II | ||
| (A) | RNA polymerase I | (i) | methyl guanosine triphosphate D |
| (B) | Tailing | (ii) | Small nuclear RNA C |
| (C) | RNA polymerase III | (iii) | Adenylate residues B |
| (D) | Capping | (iv) | rRNAs A |
(a) (A) = iv, (B) = iii, (C) = ii, (D) = i
(b) (A) = ii, (B) = iv, (C) = i, (D) = iii
(c) (A) = iii, (B) = i, (C) = iv, (D) = iii
(d) (A) = i, (B) = ii (C) = iii, (D) = iv
Ans.(a)
Q10. Where does the process of microsporogenesis takes place?
(a) Ovule
(b) Placenta
(c) Anther
(d) Locule
Ans.(c)
Q11. What is the chromosome number in the meiocytes of maize?
(a) 46
(b) 12
(c) 20
(d) 34
Ans.(c)
Q12. Which of the following is correct about oral pills?
(a) They contain estrogen
(b) They contain relaxin
(c) They contain progestogen and estrogen
(d) They contain testosterone
Ans.(c)
Q13. In food chain, if there is 5000 joules of energy available to the producer then how much energy will be available to the secondary consumer?
(a) 500 J
(b) 50 J
(c) 5 J
(d) 0.5 J
Ans.(b)
Q14. The process of conversion of spermatids to spermatozoa is called.
(a) Spermiation
(b) Spermiogenesis
(c) Spermatogenesis
(d) Sporogeneses
Ans.(b)
Q15. The Leydig cells produce.
(a) Seminal plasma
(b) Progesterone
(c) Androgens
(d) All of the above
Ans.(c)
Q16. The process of aeration is done at which of the following step of sewage treatment?
(a) Primary treatment
(b) Secondary treatment
(c) Biological treatment
(d) Both (b) and (c)
Ans.(d)
Q17. Secondary succession takes place at.
(a) Newly cooled lava
(b) Burned forests
(c) Bare rock
(d) All of the above
Ans.(b)
Q18. External fertilisation takes place in which of the following?
(a) Fishes
(b)Amphibians
(c) Majority of algae
(d) All of the above
Ans.(d)
Q19. Which of the following step is irrelevant with respect to gel electrophoresis?
(a) DNA moves under the influence of electric feild
(b) Denaturation of DNA takes place
(c) DNA moves towards anode
(d) The matrix used is agarose
Ans.(b)
Q20. Which of the following activity may spoil our health?
(a) Eating junk food
(b) Maintenance of food and water hygiene
(c) Practising yoga
(d) Regular exercise
Ans; Ans.(a)
Q21. What was the reason for the extinction of the passenger pigeon and Steller’s cow?
(a) Alen species invasion
(b) Over-exploitation by humans
(c) Co-extinctions
(d) Habitat loss
Ans. (b)
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