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Topic Prokaryotes
Asked 2 times across 2 UPSC exams over 3 years (2020–2023), peaking in 2023.
Key insights
- Most tested in CDS — 1 of 2 PYQs
- Most asked in 2023
- Recurs across 2 years (2020–2023)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
NDA 2020 → CDS 2023
How the concept evolved
Rising — more than half its appearances (2 of 2) 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.
CDS2023
Bacteria have an undefined nuclear region which lacks a nuclear membrane and contains only DNA without proteins. Such a region is called :
- A Nucleosome
- B Nucleus
- C Nucleoprotein
- D Nucleoid ✓
✓ Correct answer: (D)
Science & Technology › Biology & Health
NDA2020
In prokaryotic organisms, nuclear region is not surrounded by a membrane. This undefined nuclear region is known as
- A Nucleic acid
- B Nucleoid ✓
- C Nucleolus
- D Nucleosome
✓ Correct answer: (B)
Science & Technology › Biology & Health
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