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DeCS
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Descriptor English:
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Archaea
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Descriptor Spanish:
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Archaea
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Descriptor Portuguese:
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Archaea
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Synonyms English:
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Archaebacteria
Archaeobacteria
Archaeon
Archebacteria
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Tree Number:
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B02
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Definition English:
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One of the three domains of life (the others being BACTERIA and Eukarya), 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 four kingdoms: CRENARCHAEOTA; EURYARCHAEOTA; NANOARCHAEOTA; and KORARCHAEOTA. |
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Indexing Annotation English:
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in taxonomy, one of the 3 domains of life along with BACTERIA & Eucarya
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History Note English:
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98(81); ARCHAEA was see ARCHAEOBACTERIA 1995-97
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Allowable Qualifiers English:
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Record Number:
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30301
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Unique Identifier:
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D001105
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Occurrence in VHL:
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Similar:
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DeCS
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