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(A) The most important feature in a plasmid to be used as a vector is the origin of replication $(Ori)$.Origin of replication is a specific sequence o

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Origin of replication

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(A) The most important feature in a plasmid to be used as a vector is the origin of replication $(Ori)$.Origin of replication is a specific sequence of $DNA$ bases that is responsible for initiating the replication process.Without an $Ori$ site,the plasmid cannot replicate within the host cell,making it impossible to maintain the recombinant $DNA$ molecule.While selectable markers and restriction sites are also essential for a vector,the origin of replication is the fundamental requirement for the autonomous replication of the plasmid.

The most important feature in a plasmid to be used as a vector is

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