pBR322 which is frequently used as a vector for cloning g,e…

Biology Biotechnology Principles and Processes Principles of Biotechnology and Restriction Enzymes Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 13, 2026

pBR322 which is frequently used as a vector for cloning g,ene in E.coli is

an original bacterial plasmid

a modified bacterial plasmid

a viral genome

a transposon

Text Solution

Verified by Experts

The correct answer is:

pBR322 is an artificially constructed (modified) plasmid derived from naturally occurring plasmids of E. coli. It contains:

• ori (origin of replication)

• ampᴿ (ampicillin resistance gene)

• tetᴿ (tetracycline resistance gene)

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