- molecular clock
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the changes in the amino acid sequences of proteins that take place during evolution and speciation, and from which the dates of branchings of taxonomic groups can be deduced.
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Universalium. 2010.
molecular clock
Look at other dictionaries:
molecular clock — n a measure of evolutionary change over time at the molecular level that is based on the theory that specific DNA sequences or the proteins they encode spontaneously mutate at constant rates and that is used chiefly for estimating how long ago… … Medical dictionary
Molecular clock — Part of a series on Evolutionary Biology … Wikipedia
molecular clock — molekulinis laikrodis statusas T sritis Standartizacija ir metrologija apibrėžtis Laikrodis, kuriame laiko masteliui sudaryti naudojami molekulių virpesiai. atitikmenys: angl. molecular clock vok. molekulare Uhr, f rus. молекулярные часы, m pranc … Penkiakalbis aiškinamasis metrologijos terminų žodynas
molecular clock — molekulinis laikrodis statusas T sritis fizika atitikmenys: angl. molecular clock vok. molekulare Uhr, f rus. молекулярные часы pranc. horloge moléculaire, f … Fizikos terminų žodynas
molecular clock — noun : a measure of evolutionary change over time at the molecular level that is based on the theory that specific DNA sequences or the proteins they encode spontaneously mutate at constant rates and that is used chiefly for estimating how long… … Useful english dictionary
molecular clock — This term has two separate uses. In one sense it means the rate of fixation of mutations in DNA and thus times the rate of genetic diversification. In the second sense it means a biological system capable of maintaining a timing rhythm or pulse.… … Dictionary of molecular biology
Molecular phylogenetics — (pronounced /məˈlɛkjʊlər faɪlɵdʒɪˈnɛtɪks/) is the analysis of hereditary molecular differences, mainly in DNA sequences, to gain information on an organism s evolutionary relationships. The result of a molecular phylogenetic analysis is… … Wikipedia
Molecular anthropology — is a field of anthropology in which molecular analysis is used to determine evolutionary links between ancient and modern human populations, as well as between contemporary species. Generally, comparisons are made between sequence, either DNA or… … Wikipedia
Molecular evolution — Part of a series on Evolutionary Biology … Wikipedia
CLOCK — For other uses, see Clock (disambiguation). Clock homolog (mouse) Identifiers Symbols CLOCK; KAT13D; KIAA0334; bHLHe8 External IDs … Wikipedia
