UPSC Prelims

2023

Paper-1

Economy 23

All Questions 23 Agriculture 3 Asset Classification 1 Banking & RBI 1 Banking and Finance 1 Digital Economy 1 Energy Sector 1 Financial Markets 3 Global Trade 1 Government Schemes 2 Healthcare Infrastructure 1 Industry 1 Infrastructure & Investment 1 Infrastructure Connectivity 1 International Economics 1 International Organizations 1 International Relations 1 Monetary Policy 1 Trade & Industry 1

Environment 16

All Questions 16 Animal Behavior 1 Aquaculture 1 Biodiversity 2 Climate Change 1 Climate Change Mitigation 1 Fauna of India 2 Flora of India 1 Fungi/Biodiversity 1 International Agreements 1 International Organizations 1 Pollutants 1 Pollution 1 Protected Areas 1 Water Resources 1

General Knowledge 2

All Questions 2 Awards 1 Sports 1

Geography 17

All Questions 17 Climatology 2 Current Affairs 1 Geomorphology 2 International Relations 1 Lakes and Rivers 1 Mineral Resources 1 Physical Geography of India 1 Places in News 2 Ports of India 1 Soils and Biomes 1 World Geography 2 World Geography (Current Affairs) 1 World Resources 1

History 13

All Questions 13 Ancient India 1 Ancient Literature 1 Ancient Religion 1 Ancient South India 2 Art and Culture 2 Medieval India 3 Modern India 3

Polity 16

All Questions 16 Constitutional Amendments 1 Constitutional Bodies 1 Constitutional Principles 1 Constitutional Provisions 1 Constitutionalism 1 Finance Commission 1 Fundamental Rights 1 Governance 1 Internal Security 1 Legal System 1 Making of the Constitution 1 National Symbols 1 Parliamentary Procedures 1 Scheduled and Tribal Areas 1 The President 2

Science & Tech 13

All Questions 13 Biology 1 Biotechnology 2 Clean Energy 1 Defence Technology 1 Genetics 1 Materials Science 1 Microbiology 1 Nuclear Energy 1 Renewable Energy 1 Sensors and Devices 1 Space Technology 2

Science & Tech

Biotechnology

EN हिंदी

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UPSC Prelims 2023 Paper-1 📅 28 May, 2023

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

A

Collecting DNA samples from air in a habitat at one go

B

Understanding the genetic makeup of avian species of a habitat

C

Using air-borne devices to collect blood samples from moving animals

D

Sending drones to inaccessible areas to collect plant and animal samples from land surfaces and water bodies

Result Summary

APEDIA

UPSC Prelims

2023 • 28 May, 2023 • Paper-1

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

Correct Answer

Collecting DNA samples from air in a habitat at one go

Subject: Science & Tech.Context: Advanced Genetics and Environmental Monitoring.Details: Aerial metagenomics is a rapidly emerging scientific technique that inv......

💡 Analysis & Explanation

Subject ▼

Science & Tech.

Context ▼

Advanced Genetics and Environmental Monitoring.

Details ▼

Aerial metagenomics is a rapidly emerging scientific technique that involves sampling the air in a specific environment to collect and sequence airborne environmental DNA (eDNA). This allows scientists to identify the various terrestrial or airborne species present in that habitat simultaneously without seeing them.