| 单词 | heterozygosis |
| 释义 | > as lemmasˌheterozyˈgosis ˌheterozyˈgosis n. /-zaɪˈɡəʊsɪs/ the fusion of two genetically different gametes; the state or condition of being heterozygous. ΘΚΠ the world > life > biology > biological processes > procreation or reproduction > types of reproduction > [noun] > zygosis zygosis1880 heterozygosis1905 homozygosis1905 zygogenesis1950 1905 Rep. Brit. Assoc. 1904 585 Appearances have been seen..suggesting at first sight that a heterozygosis between two gametes, both extracted, may give, e.g., dominance. 1914 G. H. Shull in Zeitschr. f. induktive Abstammungsund Vererbungslehre 12 127 I suggest that instead of the phrases, ‘stimulus of heterozygosis’, ‘heterozygotic stimulation’, ‘the stimulating effects of hybridity’, ‘stimulation due to differences in uniting gametes’, etc...the word ‘heterosis’ be adopted. The corresponding adjective ‘heterotic’ may also be useful in such expressions as ‘heterotic effects’. 1918 E. B. Babcock & R. E. Clausen Genetics in Relation to Agric. 233 When..the differences are not great enough to obstruct normal cell division, the degree of stimulation is held to increase directly with the amount or kind of heterozygosis present. < as lemmas |
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