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

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

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Cloning Vectors
Cosmids lack

genes coding for viral proteins
origin of replication
marker genes coding for replication
cleavage site for the insertion of foreign DNA

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