What is plasmid DNA?
Plasmid is a circular, double-stranded, extra chromosomal unit of DNA that replicates within a cell, independent of the chromosomal DNA.
Plasmids are ubiquitous in prokaryotes and has also been identified in a number of eukaryotes.
Plasmids are most often found in bacteria and are used in recombinant DNA research to transfer genes between cells.
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