这种“遗传漂变”以恒定的速率产生结果。
遗传漂变减少人口差异的速度比变异要快得多。
Genetic drift reduces diversity in populations more quickly than mutation can introduce it.
当人体经过遗传漂变的过程后,基因变种在人类中变得更常见。
New versions of a gene can also become universal in a population through a random process known as genetic drift.
文化漂变是一个与进化生物学中的遗传漂变大致类似的过程。
Cultural drift is a process roughly analogous to genetic drift in evolutionary biology.
一种假说认为生长在热带地区的物种比温带物种的种群小,所以受遗传漂变的影响更大。
One is that because tropical species often have smaller populations than temperate ones, they are more susceptible to genetic drift.
我们所称为遗传漂变的遗传变异的随机损失过程如何?(等等问题都应该予以考虑。)
And what about the process of random loss of genetic variants, which we call genetic drift?
这表明红镜鲤群体仍具有较高的变异水平,但遗传漂变和人工选择已对群体产生了较大影响。
This study results indicated that high level genetic variation was still in Red mirror carp population, but genetic drift and artificial se- lection had much effect on population.
并且4个居群的基因流值都大于2,说明基因交流防止了由遗传漂变引起的居群间的遗传分化。
And gene flows of 4 populations were over 2, which suggested that there existed sufficient genetic exchanges to prevent the genetic differentiation made by genetic drift among population.
究竟正常的物种形成是通过遗传漂变还是通过自然选择达到的,是现在正在进行热烈讨论的话题。
Whether speciation is achieved normally via genetic drift or natural selection is the subject of much ongoing discussion.
所谓遗传漂变就是指:在一个有限的种群内,由于配子的随机取样使得遗传组成在种群内发生变化的现象。
Genetic drift is change in the genetic composition of a population arising as a consequence of sampling of gametes in a finite population.
遗传变异性是遗传保护研究的主要内容,在小种群中,往往由于瓶颈效应、近亲繁殖、奠基者效应和遗传漂变等使得遗传变异性减少。
Genetic variation is major study content in conservation genetics. In small population, genetic variation loss because of bottleneck effect, inbreeding, founder effect, and genetic drift.
遗传变异性是遗传保护研究的主要内容,在小种群中,往往由于瓶颈效应、近亲繁殖、奠基者效应和遗传漂变等使得遗传变异性减少。
Genetic variation is major study content in conservation genetics. In small population, genetic variation loss because of bottleneck effect, inbreeding, founder effect, and genetic drift.
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