2) Genetic drift
遗传漂变
1.
The authors introduced some important concepts in population genetics, including effective population size, inbreeding, genetic drift and gene flow, and then proposed some areas in which population genetics can be usedfor the conservation of rare and endangered plants.
本文首先介绍了居群遗传学中的几个重要概念──有效居群大小、近交繁殖、遗传漂变和基因流，然后详细叙述了居群遗传学原理在珍稀濒危植物保护中的应用途径和前景。
2.
The genetic diversity of endangered species may be lost due to genetic drift and inbreeding, but this loss is more likely to be a symptom of endangerment rather than its cause.
濒危物种的遗传多样性可能会由于遗传漂变、近交的作用而丧失；但这种丧失更可能是濒危的结果而不是濒危的起因。
3.
Computer simulation was used to determine the random genetic drifts of a biallelic gene locus in closed populations under different initial gene frequencies,population sizes and male-female ratios,based on the assumption that there was no gene mutation and individual immigration between populations.
采用计算机模拟方法研究了不同初始基因频率、群体规模和公母比例下闭锁群体内单个双等位基因座位的遗传漂变。
3) genetical purification
漂变原因
4) gene drift
基因漂变
1.
ProgramⅠ simulated gene drift fluctuation between generation in the different starting gene frequencies and the content of colony.
用计算机产生的随机数来模仿随机抽样过程 ,对种质资源世代更替中基因漂变进行了模拟。
5) bleach alteration
漂白蚀变
1.
The characteristic of DongSheng sandstone type uranium deposit is different from that of Turpan-Hami and Yili basin for its large-scale ore-controlled green-color alteration zone、bleach alteration zone and paleo-oxidation alteration just as the residual alteration, which cause investigators' attention.
东胜砂岩型铀矿具有大规模控矿绿色蚀变和漂白蚀变带、其氧化蚀变仅为蚀变残留等特征而与国内吐哈、伊犁盆地南缘等铀矿明显不同,从而引起人们的关注。
6) conversion by drift
漂移变换
补充资料：漂变
分子式：
CAS号：
性质：又称随机遗传漂变。指由于偶然发生的变动而造成下一代的基因频率不同于这一代的现象。
CAS号：
性质：又称随机遗传漂变。指由于偶然发生的变动而造成下一代的基因频率不同于这一代的现象。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条