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UPSC PYQPrelims 2023

Civil Services Examination · Question 69

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

  1. Collecting DNA samples from air in a habitat at one go
  2. Understanding the genetic makeup of avian species of a habitat
  3. Using air-borne devices to collect blood samples from moving animals
  4. Sending drones to inaccessible areas to collect plant and animal samples from land surfaces and water bodies
Show answer & explanation

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

Explanation

Aerial metagenomics sequences environmental DNA collected from air samples to identify organisms in a habitat.