The adequacy of the existing treatment, disposal and recycling processes of
waste streams from biotechnological laboratories and industrial processes,
especially those using genetically modified microorganisms, have been repe
atedly discussed. Here, we focus on the discussions linked to the DNA conte
nt of these wastes, the properties of extracellular (or 'naked') DNA and th
e ability to transfer genetic information between bacteria (e.g. antibiotic
resistances) or into higher organisms.