Topic Evolution
Asked 9 times across 5 UPSC exams over 41 years (1985–2026), peaking in 2026.
Key insights
- Most tested in CSE — 3 of 9 PYQs
- Most asked in 2026
- Recurs across 8 years (1985–2026)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
CSE 1985 → CDS 2020 → GEO 2021 → CISF 2023 → ESE 2024
How the concept evolved
Rising — more than half its appearances (6 of 9) are since 2016.
Related concepts
Ideas UPSC tests alongside this one — keep exploring.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
CISF2026
Which one of the following pairs of scientists and their contributions is correctly matched?
- A Charles Darwin : Laws of Inheritance
- B Gregor Mendel : Natural Selection
- C Ernst Mayr : Biological Species Concept
- D R.H. Whittaker : Six-Kingdom Classification
Answer key not yet available (pending official release)
Science & Technology › Biology & Health
CISF2026
Which one among the following is not an example of homologous organs?
- A Thorn of Bougainvillea and Tendril of Cucurbita
- B Wings of birds and Wings of butterflies
- C Forelimbs of horse and Hands of humans
- D Wings of bats and Flippers of dolphins
Answer key not yet available (pending official release)
Science & Technology › Biology & Health
ESE2024
Match the following lists: List I: P. Lamarck, Q. Lyell, R. Malthus, S. Wallace. List II
- Evolutionary theory,
- Gradual geological processes have gradually shaped Earth's surface,
- Human population grow faster than the resources they depend on,
- Inheritance of acquired characteristics
Select the correct answer using the code given below:
- A P-2, Q-1, R-4, S-3
- B P-4, Q-2, R-3, S-1 ✓
- C P-1, Q-4, R-3, S-2
- D P-4, Q-3, R-1, S-2
✓ Correct answer: (B)
Science & Technology › History & Foundations of Science
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