‘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-bome 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

Explanation

Option (a) is correct

• Aerial metagenomics involves the collection and analysis of genetic material, usually in the form of DNA, from the air in a particular habitat. This approach allows researchers to study the genetic diversity and composition of microorganisms, including bacteria, viruses, fungi, and other microscopic entities that may be present in the atmosphere. It enables comprehensive determination of the diversity and metabolic potential of the organisms present in an aerosol sample.

Answer: (a) Collecting DNA samples from air in a habitat at one go; Difficulty Level: Medium