Ori represents the site of origin of replication, rop represents the proteins that take part in the replication of plasmid. Hind III, Eco RI are the recognition sites of restriction endonucleases. ampR and tetR are the antibiotic resistant gene parts.
NEET UG 2012 — Zoology Biotechnology - Principles and Processes
2012mcqeasy
The figure below is the diagrammatic representation of the E. coli vector pBR 322 . Which one of the given options correctly identifies its certain components (s)? 
Official previous-year question
Held on 30 Apr 2012 · Verified 9 Jul 2026.
Options
- A
Ori-original restriction enzyme
- B
rop-reduced osmotic pressure
- C
Hind III, Eco RI-selectable markers
- D
ampR, tet tR− antibiotic resistance genes
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