A plasmid is a small, often circular DNA molecule found in bacteria and other cells. Plasmids are separate from the bacterial chromosome and replicate independently of it. Related Theory Each bacterial cell typically produces many copies of a plasmid, in contrast to making only one copy of its own chromosome. The fact that plasmids are smaller and in greater number than the host chromosome make plasmids easier to isolate in pure form, which is why researchers commonly use them for studying DNA in the laboratory. Plasmids are thus a fundamental tool of recombinant DNA technology.
In bacteria, plasmid is:
NEET UG 2002 — Botany Biological Classification
2002mcqmedium
In bacteria, plasmid is:
Official previous-year question
Held on 30 Apr 2002 · Verified 9 Jul 2026.
Options
- A
extra chromosomal material
- B
main DNA
- C
non-functional DNA
- D
repetitive gene
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