Changes

[[Image:Binary fission.png|thumb|right|100px|Binary fission- copyright J W Schmidt]]

[[Image:Binary fission.png|thumb|right|100px|Binary fission (JTojnar 2010, WikiMedia Commons)]]

Replication normally occurs by binary fission and ranges from every 20 mins (e.g. Staphylococci) to 2 weeks (e.g. leprosy bacillus)

Replication normally occurs by binary fission and ranges from every 20 mins (e.g. Staphylococci) to 2 weeks (e.g. leprosy bacillus)

*Variation can occur either by mutations in their DNA, or by ''lateral gene transfer'':

*Variation can occur either by mutations in their DNA, or by ''lateral gene transfer'':