C PROGRAMMING QUIZ

the right arm of the vector DNA

None of these

central fragment of the vector DNA

the left arm of the vector DNA

physical separation of lambda arm from central fragment is not required

they have more extensive range of restriction targets with in their polylinkers.

physical separation of lambda arm from central fragment is required

both (a) and (b)

bacteriophage

phagemid

plasmid

cosmid

filamentous phage

both (a) and (b)

plasmid

single stranded DNA vector

Its replication depends upon host cell

It is closed and circular DNA

It is double stranded

It is extrachromosomal

6-7 kb

40-44 kb

1-2 kb

15-25 kb

100 kbp

10 kbp

20 kbp

50 kbp

20-23 kb

6-7 kb

40-44 kb

1-2 kb

cleavage site for the insertion of foreign DNA

genes coding for viral proteins

marker genes coding for replication

origin of replication

Contain λ att site

Contain functional origin of replication of the plasmid and λ phage

May be propagated as a plasmid or as phage in appropriate strain

Can only be propagated as phage