homology

homology
The state of being homologous.
- h. of chains the degree of similarity between the base sequences of strands of two DNAs. SYN: h. of strands.
- DNA h. the degree (or percentage) of hybridization capable between the DNA of different microorganisms.
- h. of strands SYN: h. of chains.

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ho·mol·o·gy hō-'mäl-ə-jē, hə- n, pl -gies
1 a) likeness in structure between parts of different organisms due to evolutionary differentiation from the same or a corresponding part of a remote ancestor compare ANALOGY, HOMOMORPHY
b) correspondence in structure between different parts of the same individual
2 a) the relation existing between chemical compounds in a series whose successive members have in composition a regular difference esp. of one carbon and two hydrogen atoms CH2
b) the relation existing among elements in the same group of the periodic table
c) similarity of nucleotide or amino acid sequence (as in nucleic acids or proteins)

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ho·mol·o·gy (ho-molґə-je) [Gr. homologia agreement] the quality of being homologous; the morphological identity of corresponding parts; structural similarity due to descent from a common form.

Medical dictionary. 2011.

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  • Homology — Ho*mol o*gy, n. [Gr. ? agreement. See {Homologous}.] 1. The quality of being homologous; correspondence; relation; as, the homologyof similar polygons. [1913 Webster] 2. (Biol.) Correspondence or relation in type of structure in contradistinction …   The Collaborative International Dictionary of English

  • Homology — may refer to:* Homology (anthropology), analogy between human beliefs, practices or artifacts due to genetic or historical connections. * Homology (biology): similar structures due to shared ancestry. * Homology (chemistry): a compound of a… …   Wikipedia

  • homology — homology. См. гомология. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • homology — index analogy, relation (connection) Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • homology —   , homology.   Features having a common origin but not necessarily the same function, e.g. cycad leaves, cataphylls, and sporophylls.   See also apomorphy, autoapomorphy, homoplasy, plesiomorphy, symplesiomorphy, synapomorphy …   Expanded glossary of Cycad terms

  • homology — [hō mäl′ə jē, həmäl′ə jē] n. pl. homologies [LL homologia < Gr: see HOMO & LOGY] 1. the quality or state of being homologous 2. a homologous correspondence or relationship, as of animal organs, chemical compounds, etc …   English World dictionary

  • homology — /heuh mol euh jee, hoh /, n., pl. homologies. 1. the state of being homologous; homologous relation or correspondence. 2. Biol. a. a fundamental similarity based on common descent. b. a structural similarity of two segments of one animal based on …   Universalium

  • homology — noun (plural gies) Date: circa 1656 1. a similarity often attributable to common origin 2. a. likeness in structure between parts of different organisms (as the wing of a bat and the human arm) due to evolutionary differentiation from a… …   New Collegiate Dictionary

  • homology — homologija statusas T sritis augalininkystė apibrėžtis Darinių panašumas dėl artimos kilmės. atitikmenys: angl. homology rus. гомология …   Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas

  • homology — homologous ► ADJECTIVE 1) having the same relation, relative position, or structure. 2) Biology (of organs) similar in position, structure, and evolutionary origin. DERIVATIVES homologize (also homologise) verb homology noun. ORIGIN Greek… …   English terms dictionary

  • Homology modeling — Homology modeling, also known as comparative modeling of protein refers to constructing an atomic resolution model of the target protein from its amino acid sequence and an experimental three dimensional structure of a related homologous protein… …   Wikipedia

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