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GS Paper IUPSC Prelims 2023
Biotechnology & Genetics
Question No. 3Interactive Test Mode
00:00
+2-0.66

Q3. ‘Aerial metagenomics’ best refers to which one of the following situations?

‘Aerial metagenomics’ best refers to which one of the following situations?

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 2023 • Science and Technology

Correct Answer: Option (A) — Collecting DNA samples from air in a habitat at one go

Concept & Option Breakdown

Standard Reference Verified

Metagenomics is the study of genetic material recovered directly from environmental samples. Aerial metagenomics specifically involves capturing airborne environmental DNA (eDNA) directly from ambient air to detect and identify a wide spectrum of organisms (bacteria, viruses, fungi, plants, animals) present in that habitat simultaneously.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2023 (Q3)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicScience and Technology → Biotechnology & Genetics
Official Answer KeyOption (A) — Collecting DNA samples from air in a habitat at one go

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Frequently Asked Questions — UPSC Prelims 2023 Q3

What is the official answer for UPSC Prelims 2023 GS Paper I Question 3 (Science and Technology)?

The official UPSC answer key for this 2023 Science and Technology (Biotechnology & Genetics) question is Option (A): "Collecting DNA samples from air in a habitat at one go". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2023 question belong to?

This question belongs to GS Paper I under the subject "Science and Technology" and micro-topic "Biotechnology & Genetics". You can explore all repeated questions from Biotechnology & Genetics 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 Biotechnology & Genetics UPSC Prelims question using option elimination?

To solve Biotechnology & Genetics 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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