Cloning Vectors
Plasmid incompatibility is

None of these
both (a) and (b)
inability of two different plasmids to coexist in the same host cell in the absence of selection pressure.
inability of a plasmid to grow in the host

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Cloning Vectors
Phagemid consist of

plasmid vector carrying origin of replication of λ phage only
plasmid vector carrying λ attachment (λ att) site
plasmid vector carrying origin of replication of plasmid only
plasmid vector carrying λ phage's cos site

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