Cloning Vectors
Select the wrong statement about plasmids?

It is extrachromosomal
Its replication depends upon host cell
It is closed and circular DNA
It is double stranded

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Cloning Vectors
Charon vectors are different from EMBL vectors because

physical separation of lambda arm from central fragment is not required
both (a) and (b)
they have more extensive range of restriction targets with in their polylinkers.
physical separation of lambda arm from central fragment is required

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