11 previous year UPSC Prelims questions on Biology: Zoology (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 11–11 of 11 questions
The genome of yeast (Saccharomyces cerevisiae) was the first eukaryotic genome to be fully sequenced. The sequencing was completed in 1996 which marked a major milestone in genomics.
| Q | UPSC year | Correct answer |
|---|---|---|
| 11 | 1997 | (b) Yeast |
This page covers 11 previous year UPSC Prelims GS Paper-I questions on Biology: Zoology (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 Biology: Zoology (Science and Technology) are available for 17 years, from 1996 to 2025. Use the Year filter to practise a single paper.
