| 单词 | unit character |
| 释义 | > as lemmasunit character unit character n. Genetics (now historical). a characteristic inherited according to Mendelian laws.The concept was developed before a clear distinction had been made between genotype and phenotype, and was abandoned once the complexity of their relationship was realized. Cf. unit factor n. ΘΚΠ the world > life > biology > biological processes > genetic activity > heredity or hereditary descent > [noun] > inherited quality or constitution draught1483 strind?a1513 patrimonya1578 strain1605 inheritance1613 hereditament1795 stripe1861 stock1866 unit character1902 the world > life > biology > biological processes > genetic activity > genetic components > [noun] > allele > types of allele dominant1900 unit character1902 multiple allelomorph1913 lethal1917 marker1930 multiple allele1930 amorph1932 hypomorph1932 neomorph1932 isoallele1943 hypermorph1949 1902 W. Bateson & E. R. Saunders Rep. to Evol. Comm. Royal Soc. No. 1. 126 The purity of the germ-cells, and their inability to transmit both of the antagonistic characters, is the central fact proved by Mendel's work. We thus reach the conception of unit-characters existing in antagonistic pairs. Such characters we propose to call allelomorphs. 1915 T. H. Morgan et al. Mechanism Mendelian Heredity ix. 210 So much misunderstanding has arisen amongst geneticists themselves through the careless use of the term ‘unit character’ that the term deserves the disrepute into which it is falling. 1945 M. F. Glaessner Princ. Micropalaeontol. v. 79 The numerical values of morphological features (unit characters) plotted against numbers of specimens in which the progressive values occur, tend to arrange themselves in a regular curve. 1966 E. A. Carlson Gene ii. 13 The unit-character [of Bateson] combined the ‘differentiating character’ used by Mendel with the ‘formative element’ which he assumed to represent it in the germ cell. 2003 L. Moss What Genes can't Do i. 24 He adhered to a simple preformationist view of the unit-character which obviated any need for a more elaborate developmental story. < as lemmas |
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