A phylogenetic analysis based upon ribosomal RNA sequence characterization reveals that living systems represent one of three aboriginal lines of descent: (i) the eubacteria, comprising all typical bacteria; (ii) the archaebacteria, containing methanogenic bacteria; and (iii) the urkaryotes, now represented in the cytoplasmic component of eukaryotic cells.
No takes yet. Share an insight, caveat, or question.
Woese et al. (1977) studied this question.
Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context: