A plasmid is an independent, circular, self-replicating [[DNA molecule]] that carries only a few genes. [http://lifesciences.asu.edu/resources/mamajis/plasmids/plasmids.html] | A plasmid is an independent, circular, self-replicating [[DNA molecule]] that carries only a few genes. [http://lifesciences.asu.edu/resources/mamajis/plasmids/plasmids.html] |