| 释义 |
cytogenetics, n. pl. Biol.|saɪtəʊdʒɪˈnɛtɪks|
[f. cyto- + genetics (s.v. genetic n.).]
The study of cytology and genetics in relation to each other; esp. the study of the behaviour and properties of chromosomes as the constituents of cells that determine the hereditary properties of an organism. So cytogeˈnetic, cytogeˈnetical adjs., of or pertaining to cytogenetics; cytogeˈnetically adv.; cytogeˈneticist, one who studies or pursues cytogenetics.
1931E. B. Babcock in Amer. Nat. LXV. 5 (heading) Cyto-genetics and the species concept. Ibid. 7 Many such forms have been described as species and their hybrid nature has been discovered later by cytogenetic investigation. 1946Nature 5 Oct. 461/2 The cell types of explanted tissues are cytogenetically fixed: they breed true to histological type. 1951M. J. D. White in L. C. Dunn Genetics in 20th Cent. xvi. 362 The cytogenetical investigations of the future. 1957New Biol. XXIV. 31 To the cyto-geneticist the foraminifera present a range of material..rivalling the ciliates in diversity. 1960Times 1 July 2/4 Cytogeneticist required for work in a clinical Cytogenetics group. 1970Watsonia VIII. 1 Papers on the cytogenetics and experimental taxonomy of British plants. 1970Nature 20 June 1177/2 Twenty infants..in whom the diagnosis of Down's syndrome had been confirmed cytogenetically were studied. Ibid. 19 Sept. 1271/1 During the past decade extensive cytogenetical studies have been carried out on man's normal chromosomes and chromosome variants. |