Examines the physiology and genetics of bacteria, Archaea and viruses. Particular emphasis will be on metabolism and cell division, adaptations to extreme environments, mechanisms of interactions with and manipulation of the environment, and evolution in response to environmental pressures. Prereqs., MCDB 2150 and 3135 or 3500. Recommended prereqs. or coreqs., MCDB 3120 or 3145, EBIO 3400, CHEM 4711, or instructor consent. Same as MCDB 5310.