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
Cosmid vectors are

plasmids that have no selection marker
cryptic plasmids
plasmids that contain fragment of λ DNA including the cos site
phages that lack cos site

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