Home / Species / Bacillus thuringiensis
Species Bacillus thuringiensis
Asked 2 times across 2 UPSC exams over 22 years (2001–2023), peaking in 2001.
Key insights
- Most tested in CSE — 1 of 2 PYQs
- Most asked in 2001
- Recurs across 2 years (2001–2023)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
CSE 2001 → GEO 2023
How the concept evolved
Long-running — most appearances (1 of 2) predate 2016, and it still returns.
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.
GEO2023
Bt Cotton is a genetically modified crop with a foreign gene from
- A Bacillus thermolactis
- B Bacillus thuringiensis ✓
- C Bacillus thermophilus
- D Bacillus tequilensis
✓ Correct answer: (B)
Science & Technology › Biotech & Genetics
CSE2001
The American multinational company, Monsanto has produced an insect resistant cotton variety that is undergoing field trails in India. A toxin gene from which ONE of the following bacteria has been transferred to this transgenic cotton is.
- A Bacillus subtilis
- B Bacillus thurigiensis ✓
- C Bacillus amy loliquifanciens
- D Bacillus globlii
✓ Correct answer: (B)
Science & Technology › Biotech & Genetics
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