homologous

IPA: hɑmˈɑɫʌgʌs

adjective

  • Showing a degree of correspondence or similarity.
  • (mathematics) In corresponding proportion.
  • (biology) Corresponding to a similar structure in another life form with a common evolutionary origin.
  • (chemistry) Belonging to a series of aliphatic organic compounds that differ only by the addition of a CH₂ group.
  • (genetics) Having the same morphology as another chromosome or locus; relating to a homologue.
  • (cultural anthropology, structural anthropology) Playing the same role as seen in another culture, whether by historical connection, psychological archetype, convergent cultural evolution, or otherwise (as may be hypothesized but not known with certainty by current science), as for example with the cryptozoologic concepts of yeti and sasquatch, the use of polite and familiar pronouns, or other similarities.
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Examples of "homologous" in Sentences

  • They are called homologous because they have similar parts in similar relations.
  • Comparing aligned positions in homologous protein sequences two different behaviors are found:
  • With the help of Evans, they both set up ES cell culture for use in homologous recombination experiments.
  • Scientists have developed a successful test for another type of manipulation called homologous blood doping.
  • We knew there's a mechanism called homologous recombination, that biology uses to repair DNA, that can put pieces together.
  • All new formations built of cells which continue true to the parent type we may call homologous new formations; while those which depart from the parent type or undergo degenerative changes we may designate heterologous.
  • Mr. Lankester also adduces the close resemblance of the parts on the right and left sides of the body, and in the successive segments of the same individual animal; and here we have parts commonly called homologous, which bear no relation to the descent of distinct species from a common progenitor.
  • Professor Heer has not ventured to identify any of this vast assemblage of Miocene plants and insects with living species, so far at least as to assign to them the same specific names, but he presents us with a list of what he terms homologous forms, which are so like the living ones that he supposes the one to have been derived genealogically from the others.

Related Links

synonyms for homologous
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