Cloning Vectors
Cosmids lack

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

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Cloning Vectors
Charon vectors are different from EMBL vectors because

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

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Cloning Vectors
Conjugative plasmids

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

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