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GS Paper IUPSC Prelims 2021
Health & Medicine
Question No. 49Interactive Test Mode
00:00
+2-0.66

Q49. With reference to recent developments regarding ‘Recombinant Vector Vaccine’, consider the following statements: 1. Genetic engineering is applied in the development of these vaccines. 2. Bacteria and viruses are used as vectors. Which of the statements given above is/are correct?

With reference to recent developments regarding ‘Recombinant Vector Vaccine’, consider the following statements:

  1. Genetic engineering is applied in the development of these vaccines.
  2. Bacteria and viruses are used as vectors. Which of the statements given above is/are correct?
Select the correct option below (or cross out options to eliminate)
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Official Answer Key & Detailed Solution

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Official UPSC Answer KeyUPSC Prelims 2021 • Science and Technology

Correct Answer: Option (C) — Both 1 and 2

Concept & Option Breakdown

Standard Reference Verified

Statement 1 is correct: Recombinant vector vaccines utilize genetic engineering techniques to insert antigen-encoding genes into harmless viral or bacterial carriers. Statement 2 is correct: Both modified viruses (e.g., adenoviruses, VSV) and attenuated bacteria (e.g., Salmonella, Listeria) can serve as vectors to deliver pathogen-specific antigens into host cells.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2021 (Q49)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicScience and Technology → Health & Medicine
Official Answer KeyOption (C) — Both 1 and 2

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Frequently Asked Questions — UPSC Prelims 2021 Q49

What is the official answer for UPSC Prelims 2021 GS Paper I Question 49 (Science and Technology)?

The official UPSC answer key for this 2021 Science and Technology (Health & Medicine) question is Option (C): "Both 1 and 2". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2021 question belong to?

This question belongs to GS Paper I under the subject "Science and Technology" and micro-topic "Health & Medicine". You can explore all repeated questions from Health & Medicine in Acme AI's 3D Prelims PYQ Realm or practice 50 full-length and sectional tests in the APT Prelims Test Series.

How can I solve this Health & Medicine UPSC Prelims question using option elimination?

To solve Health & Medicine questions in UPSC Prelims, identify extreme modifiers, verify core NCERT conceptual definitions, and eliminate mutually contradictory statement pairs before locking your final option.

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