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Based on the previous years' papers, KCET Biology 2025 most expected questions are a tool that can help students with their quick revision and practice for the exam. KCET 2025 Biology exam is to be held on April 17.
KCET Biology 2025 Most Expected QuestionsKCET Biology 2025 Most Expected Questions: To prepare for the Biology for the upcoming KCET 2025 teams scheduled on April 15 to 17, 2025, aspirants shall refer to the KCET Biology 2025 most expected questions here. These questions are based on the previous years' question papers for the reference of the aspirants. Biology will have 60 questions carrying 60 marks, so aspirants are advised to be well prepared for the exams. These questions will help the aspirants to prepare well for the exams and ensure good scores.
KCET Biology 2025 Most Expected Questions
The list of KCET Biology 2025 Most Expected Questions are provided here based on PYQs and 1st and 2nd PUC textbooks:
| Q. No. | Question |
|---|---|
| 1. |
DNA polymerase of Thermus aquaticus is:
(A) Thermolabile (B) Thermophobic (C) Exonuclease (D) Thermostable |
| 2. |
A strict protection of biodiversity hotspots could reduce the ongoing mass extinction by almost:
(A) 20% (B) 25% (C) 30% (D) 35% |
| 3. |
Which among the following is used to treat Emphysema?
(A) Human Hormone - alpha-Antitrypsin (B) Human alpha-Interferon (C) Human protein - alpha-Antitrypsin (D) Human alpha-Lactalbumin |
| 4. |
Ciliated epithelial cells are present in:
(A) Kidneys (B) Intestines (C) Blood Vessels (D) Bronchioles |
| 5. |
Identify the phylum which shows the following characteristics:
1. Animals are exclusively marine, radially symmetrical, and diploblastic. 2. Body bears eight external rows of ciliated comb plates which help in locomotion. 3. Digestion is both extracellular and intracellular. 4. Reproduction only by sexual modes. (A) Coelenterata (B) Mollusca (C) Arthropoda (D) Ctenophora |
| 6. |
The water potential of pure water is:
(A) One (B) More than one (C) Zero (D) Less than zero |
| 7. |
Exoskeleton of Arthropods is made up of a unique complex polysaccharide known as:
(A) Hyaluronic Acid (B) Chitin (C) Waxes (D) Cellulose |
| 8. |
If a recombinant DNA bearing a gene for resistance to Ampicillin is transferred into E.coli cells, host cells become transformed into Ampicillin-resistant cells. What happens when these E.coli are grown on a medium containing Ampicillin?
(A) Non-transformants will grow and transformants will die (B) Non-transformants will die and transformants will grow (C) Both non-transformants and transformants will die (D) Both non-transformants and transformants will grow |
| 9. |
Which is the intermediate compound that links the end product of Glycolysis with TCA Cycle?
(A) Acetyl CoA (B) Pyruvic Acid (C) OAA (D) Citric Acid |
| 10. |
If two primary spermatocytes and two primary oocytes undergo meiosis simultaneously, what will be the ratio of spermatozoa and ova produced at the end of gametogenesis?
(A) 2:1 (B) 4:1 (C) 6:2 (D) 1:2 |
| 11. |
Following representations P, Q, and R denote a few steps of Griffith's Experiment. Identify the correct one(s).
Steps: P. R strain → Inject into mice → Mice die Q. S strain (Heat killed) → Inject into mice → Mice die R. R strain → Inject into mice → Mice live (A) P only (B) R only (C) P and R (D) Q and R |
| 12. |
Auxins : Apical dominance : : Gibberellins : .............
(A) Adventitious shoot formation (B) Accelerates abscission (C) Closure of stomata (D) Bolting |
| 13. |
In the prevention of air pollution, the role of a scrubber is to remove:
(A) Particulate SO2 (B) Liquid SO2 (C) Gaseous SO2 (D) Liquid SO3 |
| 14. |
Hydra reproduces asexually by producing:
(A) Zoospores (B) Conidia (C) Buds (D) Gemmule |
| 15. |
Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called:
(A) Xenogamy (B) Autogamy (C) Cleistogamy (D) Geitonogamy |
| 16. |
The functional unit of contraction is a:
(A) Portion of myofibril between two successive Z-lines (B) Portion of myofibril between two successive M-lines (C) Centre of the H-zone (D) Centre of the I-band |
| 17. |
In a structural gene, the template DNA strand has nucleotide sequences:
3' ATGCATGCATGCATGC 5'. Find the correct and complementary nucleotide sequence on the coding strand. (A) 5' ATGCATGCATGCATGC 3' (B) 3' GCATGCATGCATGCAT 5' (C) 5' TACGTACGTACGTACG 3' (D) 3' TACGTACGTACGTACG 5' |
| 18. |
The genotype ratio of incomplete dominance is:
(A) 3:1 (B) 1:2:1 (C) 1:1:2 (D) 9:3:3:1 |
| 19. |
Stanley Miller simulated the conditions of pre-biotic Earth using a spark-discharge apparatus. Which organic compounds were observed by him on analyzing the end product of his experiment?
(A) Pigments (B) Fats (C) Nitrogen bases (D) Amino acids |
| 20. |
Identify the bacterial disease among the following:
(A) Brown rust of wheat (B) Tobacco mosaic disease (C) Black rot of crucifers (D) Late blight of potato |
KCET 2025 Most Expected Questions Subject-Wise |
| Subject | Link |
|---|---|
| Physics | KCET Physics 2025 Most Expected Questions |
| Chemistry | KCET Chemistry 2025 Most Expected Questions |
| Mathematics | KCET Mathematics 2025 Most Expected Questions |
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