2 previous year UPSC Prelims questions on Biotechnology (Science and Technology). Choose an option to see the answer and explanation.
Explanations state facts as of the year each question was asked; words like “recently” refer to that year.
Showing 1–2 of 2 questions
Metagenomics delves into the study of microbes within their native habitats. "Aerial metagenomics" entails collecting air samples from a specific setting to capture the genetic material (DNA) of various microorganisms, encompassing bacteria, viruses, fungi, and other microscopic life forms.
Microsatellite DNA, alternatively known as short tandem repeats (STRs), represents a genetic marker characterised by repetitive sequences of DNA. Highly polymorphic, microsatellites exhibit varying lengths attributed to discrepancies in the number of repeat units. By scrutinising the discrepancies in microsatellite DNA sequences within individuals or populations, scientists can evaluate genetic diversity, population structure, and evolutionary links both within species and across different species.
| Q | UPSC year | Correct answer |
|---|---|---|
| 1 | 2023 | (a) Collecting DNA samples from air in a habitat at one go |
| 2 | 2023 | (a) Studying the evolutionary relationships among various species of fauna |
This page covers 2 previous year UPSC Prelims GS Paper-I questions on Biotechnology (Science and Technology), asked from 1996 to 2025. Each has the correct answer and an explanation.
Attempt each question first, then open the answer and read the explanation for every option. Repeat by chapter, and track which statements UPSC reuses across years. Previous year questions show the exam pattern and difficulty level.
Questions on Biotechnology (Science and Technology) are available for 19 years, from 1996 to 2025. Use the Year filter to practise a single paper.
