The evolutionary origin of the mitochondrion: a nonsymbiotic model.

Adenosine Triphosphatases/metabolism Aerobiosis Animals Bacteria/ultrastructure Biological Evolution DNA, Mitochondrial DNA-Directed RNA Polymerases/metabolism Electron Transport Extrachromosomal Inheritance Fossils Genes Heme/biosynthesis History, Ancient Membranes/physiology Mitochondria/metabolism,ultrastructure Models, Biological Origin of Life Oxygen/toxicity Oxygen Consumption Plasmids Protein Biosynthesis RNA, Messenger/metabolism RNA, Ribosomal/metabolism Symbiosis Transcription, Genetic

DNA, Mitochondrial RNA, Messenger RNA, Ribosomal Heme DNA-Directed RNA Polymerases Adenosine Triphosphatases Oxygen