Cloning Vectors
Which of the following is not true about phagemid?

Contain functional origin of replication of the plasmid and λ phage
May be propagated as a plasmid or as phage in appropriate strain
Contain λ att site
Can only be propagated as phage

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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 λ phage's cos site
plasmid vector carrying origin of replication of plasmid only

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Cloning Vectors
Cosmid vectors are

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

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