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Wednesday, 9 September 2026
September 9, 2026

UPSC Prelims 2025 GS Paper I Q49 — Viruses in Oceans and BacteriaUPSC प्रीलिम्स 2025 GS पेपर I प्रश्न 49 — महासागर, बैक्टीरिया और विषाणु

About 1 min readPublished 9 September 2026
UPSC • Prelims • 2025 • Prelims GS Paper I Attempt the actual previous-year questions first. Official answer, analysis and elimination clue appear only after final submission.
Official Final Answer Key — Series A; 0 questions dropped; 100 questions scored 1 questions Official Question Paper ↗ Official Answer Key ↗
UPSC • Prelims • 2025 • Prelims GS Paper I
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Question 49
UPSCScience & Technology2025Prelims GS Paper ISeries A

Consider the following statements:

I. No virus can survive in ocean waters.

II. No virus can infect bacteria.

III. No virus can change the cellular transcriptional activity in host cells.

How many of the statements given above are correct?

निम्नलिखित कथनों पर विचार कीजिए : I. महासागरीय जल में कोई विषाणु जीवित नहीं रह सकता। II. कोई विषाणु जीवाणुओं को संक्रमित नहीं कर सकता। III. कोई विषाणु मेज़बान कोशिकाओं की कोशिकीय ट्रांसक्रिप्शनल गतिविधि को बदल नहीं सकता। उपर्युक्त कथनों में से कितने सही हैं?

Official Final Answer Key — Series A; 0 questions dropped; 100 questions scored
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Goldej Kumar is the Founder and Editor of Sri Ram Exams (Exam2.in), an independent educational platform for UPSC, State Public Service Commission, SSC and other competitive examinations. His editorial focus is on exam-relevant current affairs, source-based analysis, MCQ reasoning, previous-year-question patterns and clear bilingual learning for English- and Hindi-medium aspirants.