The origin of mitochondria.
The endosymbiont and episome theories about the origin of mitochondria are reviewed.  Biochemical and genetic data, relevant to these theories are discussed.  An alternative theory is also proposed; this theory is that nuclear and mitochondrial DNAs developed from compartmentalized duplicate prokaryote DNAs.
D001419:Bacteria / Q000648:ultrastructure; D005075:Biological Evolution; D002467:Cell Nucleus / Q000378:metabolism; D004247:DNA / Q000378:metabolism; D004272:DNA, Mitochondrial / Q000378:metabolism; D005796:Genes; D008928:Mitochondria / Q000378:metabolism; D008954:Models, Biological; D010957:Plasmids; D013559:Symbiosis
D004272:DNA, Mitochondrial; D004247:DNA