The CUET PG Zoology exam in 2025 will be conducted between 13th May and 3rd June, and candidates will be able to download the question paper, answer key, and solution PDF after the exam. The test evaluates a candidate’s understanding of animal physiology, ecology, cell biology, genetics, evolution, ethology, biochemistry, developmental biology, and other core concepts relevant to the field of Zoology.
Students are required to attempt 75 questions in 60 minutes, with a total of 300 marks. Each correct answer awards 4 marks, while 1 mark is deducted for every incorrect response.
CUET PG Zoology 2025 Question Paper with Answer Key PDF
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CUET PG Zoology 2025 Question Paper with Solutions
What is the sequence of the template DNA for an mRNA with the sequence?
5'-CAUUGGCCAAGG-3'
Which type of polymerase activity is shown by the enzyme telomerase?
If the growth medium of a bacterial strain contains both glucose and lactose, how does it affect the lac operon?
A. CAP protein binds lac promoter
B. Repressor binds lac operator
C. CAP protein does not bind lac promoter
D. Repressor does not bind lac operator
Choose the most appropriate answer from the options given below:
Which one of the following correctly describes the role of signal recognition particles?
Which of the following is the most stable DNA configuration under normal physiological conditions?
Arrange the following cell cycle stages in the correct order of their occurrence:
A. S phase
B. M phase
C. G1 phase
D. G2 phase
Match LIST-I with LIST-II
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The approximate diameter of actin filaments is:
Match LIST-I with LIST-II
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Which of these are executioner caspases?
A. Caspase 3
B. Caspase 6
C. Caspase 8
D. Caspase 5
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Which larval form of Fasciola hepatica has a motile tail?
In the life cycle of a Plasmodium, once the sporozoite enters the blood of the host, it invades the hepatic portal system, resulting in occurrence of change in the host body, leading to malaria
A. Sporozoite enters the hepatocytes and divides by schizogony leading to formation of cryptomerozoites
B. Inside RBCs, the micro-metacryptozoites become rounded and modify into a young trophozoites.
C. As the trophozoite grows in size, a central vacuole is developed so that the nucleus is pushed to one side into the peripheral cytoplasm, leading to amoeboid stage.
D. In Amoeboid stage the small red eosinophils granules appear in the cytoplasm of the host corpulses as Schuffner's granules
Choose the most appropriate answer from the options given below:
During the process of conjugation in Paramecium, how many daughter Paramecia are formed from 2 parents?
Which one of the following is a larval form of jelly fish?
Match LIST-I with LIST-II
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In the life history and development of sea star, numerous larval forms are formed. Arrange them in the order of their occurrence:
A. Dipleurula
B. Branchiolaria
C. Bipinnaria
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Which one of the following belongs to class-Diplopoda?
How many somatic cells are present in C. elegans?
How many different type of gametes can potentially be produced by an organism with the genotype aaBbccdd?
What is the difference between gynandromorphs and intersexes in Drosophila?
Match LIST-I with LIST-II
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Which of the following statements are true?
A. When two or more genes co-exist on the same chromosome, they may violate the principle of independent assortment during meiosis.
B. Positive interference occurs when the presence of one chiasma increases the possibility of another chiasma occurring in the immediate vicinity.
C. The proportion of crossovers never exceeds 50%.
D. The Chi-square test can be used for segregation ratios and detection of linkage.
Choose the most appropriate answer from the options given below:
Based on the threshold range, at the X/A ratio of 0.67, the sex of Drosophila will be:
In a population under Hardy Weinberg Equilibrium, out of a total of 592 people, 44 people were affected by a rare autosomal recessive disorder whereas the rest of the population was normal. How many individuals in this population have the heterozygous and homozygous dominant genotypes for this trait?
Match LIST-I with LIST-II
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Which of the following phenomena can lead to microevolution?
A. Natural Selection
B. Sexual Selection
C. Genetic Drift
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Which of the following statements are correct about the phenomenon of genetic drift?
A. It occurs in a small population.
B. It leads to the loss of genetic variation within population.
C. It doesn't change the allele frequency randomly.
D. It occurs in a large population.
Choose the most appropriate answer from the options given below:
The increase in the beak depth of Galápagos finches with a relative abundance of large seeds, is an example of
How many jaws are present in Aristotle's Lantern?
The technique to mark, release and recapture is a practical method for
Any species that have been accidentally or deliberately transferred from their usual habitat to a new habitat whose abiotic conditions are also suitable for them are known as:
The populations, showing relatively constant density around the carrying capacity of the environment, is called
Which one of the following statements is correct for Mollisol?
Match LIST-I with LIST-II
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Arrange the given events to correct sequence in relation to translation:
A. Adenylation of amino acid and aminoacyl-tRNA charging.
B. Formation of Peptide bond.
C. Recruitment of ribosome to the mRNA.
D. Correct positioning of charged tRNA into the P-site of the ribosome.
Choose the most appropriate answer from the options given below:
The WBC count of a group of athletes in a team was estimated to be 7900, 9000, 7800, 8300, 2900, 4545, 5100, 3700, 9900 and 4545 per mm3 of blood. Calculate the median WBC count of this group of individuals.
Which of the following statements is not applicable to the mode of a dataset?
The number of fish caught each day by a fisherman for 10 consecutive days was reported to be 62, 58, 56, 57, 62, 59, 62, 57, 64, 63. What is the standard deviation of this dataset?
Which one of the following animals belongs to the oviparous mammal group?
How is the mean deviation calculated for a given dataset?
Ciliated simple columnar epithelium located at: -
A. Lining of some bronchioles of the respiratory tract
B. Cover surface of ovary
C. Larger ducts of many glands
D. Ventricles of brain
Choose the most appropriate answer from the options given below:
Which one of the following statements is applicable to satellite cells?
The trigeminal nerve is the largest nerve with following branches:
A. Olfactory
B. Ophthalmic
C. Maxillary
D. Mandibular
Choose the most appropriate answer from the options given below:
What is Ferritin?
Calculate the Harmonic Mean of the following data:
10 20 40 60 120
What is the correct sequence of four steps of the contraction cycle in muscles?
A. Power stroke
B. Attachment of myosin to actin
C. ATP hydrolysis
D. Detachment of myosin from actin
Choose the most appropriate answer from the options given below:
Arrange the following enzymes of the citric acid cycle in the correct sequence.
A. Aconitase
B. Fumarase
C. Malate dehydrogenase
D. Isocitrate dehydrogenase
Choose the most appropriate answer from the options given below:
In Glycolipids and sphingolipids, glycerol is replaced by which amino alcohol?
At low substrate concentration, the initial velocity of reaction is described as __________. However, as substrate concentration increases, the reaction saturates and reaches a __________.
Cellulose is a homopolymer of:
Match LIST-I with LIST-II
Choose the correct answer from the options given below:
Match LIST-I with LIST-II
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What is the full form of the IMZ abbreviation?
What is the function of yolk sac?
In Amphibia, gastrulation begins at:
Which one of the following zones is absent in pond ecosystems?
Match LIST-I with LIST-II
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Arrange the following stages of ecological succession in the correct sequence
A. Ecesis
B. Nudation
C. Aggregation
D. Reaction
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Which of the following statements are correct with reference to Photochemical Smog?
A. It is an oxidizing smog.
B. It is formed by the reaction between NO\(_2\) and hydrocarbons.
C. It is a reducing smog.
D. It is formed in the presence of UV-radiation.
Choose the most appropriate answer from the options given below:
The Air Quality Index is measured using the Criteria Pollutants. Which one of the following is not a Criteria Pollutant?
Which of the following factors can influence the process of weathering?
A. Rock type and structure
B. Slope
C. Climatic Conditions
D. Time
Choose the most appropriate answer from the options given below:
Match LIST-I with LIST-II
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Monoclonal antibodies differ from polyclonal antibodies in their property of reacting with specific
Which of the following diseases is not an autoimmune disease?
Which of the following cells instruct the abnormal or virally infected cells to commit suicide?
Which one of the following immunoglobulin is responsible for atopic allergy?
Class I MHC molecules present peptides to which of the following cell type?
Which one of the following best describes the innate immune response?
What are chemokines?
Which one of the following best describes the application of DNA microarray?
What is the correct sequence of steps in the genetic engineering of E.coli for insulin production?
A. Obtaining a copy of the human insulin gene by isolating mRNA
B. Switching on gene action.
C. Identifying transformed bacteria prior to cloning
D. Inserting the DNA into a plasmid vector and inserting the plasmid vector into the host bacterium
Choose the most appropriate answer from the options given below:
A multiple cloning site:
Southern blotting procedure does not include:
The brain and spinal cord develop from ectoderm arranged in a tubular structure called the neural tube. The anterior part of the neural tube expands, and constrictions appear that create multiple regions. Arrange the parts of the embryonic brain chambers in a 5 week embryo from top to bottom.
A. Diencephalon
B. Myelencephalon
C. Metencephalon
D. Mesencephalon
E. Telencephalon
Choose the most appropriate answer from the options given below:
Which one of the following diseases can be corrected by gene therapy?
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