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Topic Gene editing
Asked 3 times across 2 UPSC exams over 7 years (2018–2025), peaking in 2018.
Key insights
- Most tested in CSE — 2 of 3 PYQs
- Most asked in 2018
- Recurs across 3 years (2018–2025)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
CSE 2018 → GEO 2025
How the concept evolved
Rising — more than half its appearances (3 of 3) 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.
GEO2025
Clustered Regularly Interspaced Short Palindromic Repeats are associated with
- A gene-editing method ✓
- B designing a guide DNA
- C Norman Myers and Stanley Cohen
- D double-strand break and template-guided RNA repair
✓ Correct answer: (A)
Science & Technology › Biotech & Genetics
CSE2019
What is Cas9 protein that is often mentioned in news?
- A A molecular scissors used in targeted gene editing ✓
- B A biosensor used in the accurate detection of pathogens in patients
- C A gene that makes plants pest-resistant
- D A herbicidal substance synthesized in genetically modified crops
✓ Correct answer: (A)
Science & Technology › Biotech & Genetics
CSE2018
Consider the following pairs : Terms sometimes seen in news Context/Topic
- Belle II experiment — Artificial Intelligence
- Blockchain technology — Digital/Cryptocurrency
- CRISPR – Cas9 — Particle Physics
Which of the pairs given above is/are correctly matched ?
- A 1 and 3 only
- B 2 only ✓
- C 2 and 3 only
- D 1, 2 and 3
✓ Correct answer: (B)
Science & Technology › Emerging Tech
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