Cloning Vectors
Charon vectors are different from EMBL vectors because

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

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Cloning Vectors
Conjugative plasmids

carry transfer genes called the tra genes
do not exhibit antibiotic resistance
exhibit antibiotic resistance
do not carry transfer genes

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Cloning Vectors
Cosmids lack

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

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