An organism of the kingdom Monera, including bacteria and cyanobacteria with no membrane-bound nucleus or membrane-bound organelles, and with DNA not organized into chromosomes.
A bacteriophage, commonly shortened to phage, is any one of a number of viruses that infect bacteria. This category is for sites dealing with the genetics of bacteriophages. Families or groups include Corticoviridae, Cystoviridae, Inoviridae, Leviviridae, Leviviridae, Lipothrixviridae, Microviridae, Myoviridae, Plasmaviridae, Podoviridae, Siphoviridae, Sulpholobus shibatae virus, and Tectiviridae.