A) which have their own point of replication and can replicate independently
B) which have their own point of replicant but cannot replicate independently
C) which do not have their own point of replication and cannot replicate indepen dent of bacterial chromosomal DNA
D) none of the above
Correct Answer: A
Solution :
Plasmids are extra chromosomal, molecules of DNA that replicate independently of bacterial chromosomes. They are normally closed, circular, supercoiled, 22-210kb in size. Plasmids are used as vector for cloning and genetic engineering.
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