UPSC Previous Year Question | Prelims GS | 2023

'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

Answer

Correct Answer

Collecting DNA samples from air in a habitat at one go

Explanation

'Aerial metagenomics' or airborne eDNA sampling refers to collecting environmental DNA traces suspended in the air of a habitat in one go, allowing simultaneous detection of multiple species present.

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