Plasmid

What is Plasmid?

A plasmid is a small double stranded circular DNA molecule found in bacteria andsome other microorganism. Plasmids are extra-chromosomal DNA, that means the are physically separate from chromosomal DNA. Replication of chromosome in unrelated to bacterial chromosome replication.

Plasmid
Pic: Plasmid, Photo Credit: freepik.

Plasmids are used in recombinant DNA technology as a carrier of target gene. In nature, plasmids frequently carry genes that aid in the survival of the organism and provide selective advantage such as antibiotic resistance. Artificial plasmids are readily used as vectors in molecular cloning, aiding to operate the replication of recombinant DNA sequences within host organisms. By the process of transformation, plasmid may be uptake by a bacterial cell . Now-a- days synthetic plasmids are also found commercially over the e-commerce market.

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