About The Medical Condition Archaebacteria
Find the definition of the medical term Archaebacteria. Archaebacteria defined and explained for easy understanding at the Medical Conditions from ClusterMed.info.
Archaebacteria
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What's The Definition Of The Medical Condition Archaebacteria?
One of the three domains of life (the others being BACTERIA and Eucarya), formerly called Archaebacteria under the taxon Bacteria, but now considered separate and distinct. They are characterized by: (1) the presence of characteristic tRNAs and ribosomal RNAs; (2) the absence of peptidoglycan cell walls; (3) the presence of ether-linked lipids built from branched-chain subunits; and (4) their occurrence in unusual habitats. While archaea resemble bacteria in morphology and genomic organization, they resemble eukarya in their method of genomic replication. The domain contains at least three kingdoms: CRENARCHAEOTA; EURYARCHAEOTA; and KORARCHAEOTA.
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