
The SciencesDecember 1, 1980
Plasmids
These accessory genetic elements in bacteria, best known as carriers of resistance to antibiotics and as vehicles for genetic engineering, are actually subcellular organisms poised on the threshold of life

Plasmids
These accessory genetic elements in bacteria, best known as carriers of resistance to antibiotics and as vehicles for genetic engineering, are actually subcellular organisms poised on the threshold of life