Are archaebacteria merely derived ‘prokaryotes’?

@article{Woese1981AreAM,
  title={Are archaebacteria merely derived ‘prokaryotes’?},
  author={Carl R. Woese and Ramesh Gupta},
  journal={Nature},
  year={1981},
  volume={289},
  pages={95-96}
}
The archaebacteria are a group of prokaryotes which seem as distinct from the true bacteria (eubacteria) as they are from eukaryotes1–4. The evidence on which this conclusion rests is of two types: genotypic (quantitative)—that is, comparative sequence studies, and phenotypic (qualitative)—that is, differences in various organismal characteristics. The differences between archaebacteria and true bacteria are so great, both quantitatively and qualitatively, that the two bacterial groups should… Expand

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