| 单词 | dominance modifier |
| 释义 | > as lemmasdominance modifier 2. Biology. The phenomenon whereby one of a pair of alleles present in a genotype is expressed in a phenotype while the other allele is masked; the state or property of being dominant (dominant adj. 7). Also attributive, as dominance modifier = dominigene n. ΘΚΠ the world > life > biology > biological processes > genetic activity > genetic components > [noun] > allele > dominant or recessive recessiveness1896 recessive1900 dominance1902 coupling1906 pseudodominance1921 pseudodominant1948 1902 W. Bateson Mendel's Princ. Heredity 119 (heading) The facts in regard to dominance of characters in peas. 1902 W. Bateson Mendel's Princ. Heredity 119 The dominance of the smooth form over the wrinkled. 1916 J. Wilson Man. Mendelism 24 If the pairs in which the parents differ are clearly defined at the hybrid generation as regards dominance and recessiveness. 1918 E. B. Babcock & R. E. Clausen Genetics in Relation to Agric. v. 69 The condition of dominance..is determined by the fact that in the hybrid that character is expressed to the exclusion of its contrasted character. 1925 T. H. Morgan Evol. & Genetics 151 (heading) The dominance of the wild type genes. 1929 R. A. Fisher in Amer. Naturalist 63 555 The real difficulty..is not so simple as that the selective action upon dominance modifiers is so small that there has not been time for it to have had any appreciable effect. 1937 T. Dobzhansky Genetics & Origin of Species vi. 172 It must be kept in mind that dominance versus recessiveness is a matter of degree. 1968 M. W. Strickberger Genetics vi. 99 This phenomenon, by which one trait appears and the other does not, even though the factors for both are present, is called dominance. < as lemmas |
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