| 单词 | genetic drift |
| 释义 | > as lemmasgenetic drift genetic drift n. change in gene frequencies; esp. random fluctuation in gene frequencies in a small breeding population. ΚΠ 1940 H. J. Muller in J. Huxley New Systematics 216 It will, in the process of accidental multiplication and decline of mutant genes,..termed ‘drift’ by Wright, accumulate a divergent set of recessive detrimental mutant genes.] 1945 Ann. Missouri Bot. Garden 32 414 The phenomenon of ‘genetic drift’ will come into play. 1960 W. Miller Canticle for Leibowitz (1961) xxvii. 247 Each racial group was so small that unless their descendants intermarried, each would undergo deteriorative genetic drift due to inbreeding on the colony planet. 2000 Sciences May 12/2 In large populations genetic drift can lead to fluctuations in the frequency of certain alleles, though the law of large numbers makes it highly unlikely that the genetic variations..will disappear completely. < as lemmas |
| 随便看 |
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。