Published by:
CGP EDU Academic Team
Published on: August 13, 2026
pBR322 which is frequently used as a vector for cloning gene in E. coli is a/an
Text Solution
Verified by ExpertsThe correct answer is:
B
pBR322 is an artificially modified plasmid derived from naturally occurring plasmids of E. coli. It was developed by Bolivar and Rodriguez and is widely used as a cloning vector.
It contains:
• ori (origin of replication)
• ampR (ampicillin resistance gene)
• tetR (tetracycline resistance gene)
• Several unique restriction sites
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