genetic drift

The differences probably due to a limited number of introductions and genetic drift.

这些差异可能由于有限度的引种和遗传迁移。

This is one form of a process that biologists call genetic drift.

这是生物学家称之为遗传偏移的一种方式.

We proposed that the migration and mixing are the dominant driving force of the HLA gene flow while the genetic drift caused by isolation and the nature selection have an important influence on HLA genetic structure.

认为群体迁移、融合而产生的基因流动是HLA基因频率变化的主要动力，但隔离导致的遗传漂变以及自然选择也有重要影响。

The unflattering answer could be for no other reason than random genetic drift.

最佳答案是基因的随机变异,它一点儿不讨人喜欢.

Simulation of Genetic Drift in Closed Population under Different Initial Gene Frequencies Book a holiday, possibly white-water rafting.

不同初始基因频率下闭锁群体遗传漂变的模拟预定假期，比如白水漂流（即漂流）。

Genetic drift can even counteract natural selection.

遗传漂变甚至可以抵消自然选择.

More intense effect of genetic drift than selection leaded bigger genetic differentiation among generations than that between two host populations, 3.

遗传漂变的作用大于选择压力而使同种寄主不同世代种群间的遗传分化更大。

The reasons may be that the excursion occurred in random mating, the random genetic drift and breeding was existed in 6 populations.

究其原因有随机交配发生偏移、遗传漂变及选择等因素，其中选择所造成的影响最大，其次为随机交配发生的偏移以及遗传漂变。

Effect of Age Structure of Inbreeding and genetic Drift in animal Populations Simulation of Genetic Drift in Closed Population under Different Initial Gene Frequencies

年龄结构对群体近交遗传漂变的作用不同初始基因频率下闭锁群体遗传漂变的模拟

Experimental results show that genetic drift induced by occurrence-based scanning crossover reduces both convergence rate and genotypic diversity, thus causing pure performance deterioration of evolutionary search.

实验数据表明，重组的遗传漂移只会产生降低收敛速度和收敛可靠性的纯消极效果。

Accounting for expense on regeneration and potential threat form genetic drift, we suggested that viability standard of regeneration threshold should not be too low ( 80% may be referenced).

考虑到繁殖费用和遗传漂移的潜在威胁等因素，建议基因库大豆种质繁殖更新的生活力标准不要大低（以80%为宜）。

Genetic Drift Analysis of Recombination

重组的遗传漂移分析

This might be due to the continuous, oriented selection for the flowering traits and might also be due to the genetic drift induced by selection intensity and effective population size.

这可能是由于连续对开花期性状定向选择的结果，也可能还与群体有效含量和选择强度引起的遗传漂变有关。

The result shows that genetic drift has a strong effect on the loss of genetic diversity.

结果表明,圈养大熊猫群体规模小,漂变是导致遗传多样性丢失的主要因素.

Based on FST, mean gene flow Nm is about 7. 3. Nm> 1, it is enough to resist the effect of genetic drift and prevent population from subdivision.

基于FST，间接估计基因流（Nm）值约为7.3。Nm＞1，说明基因流足以抵制遗传漂变的作用，也同时防止了居群分化的发生。

Genetic drift from conventional crossover and recombination operators, is analyzed theoretically.

以广义交叉算子为对象，研究重组的遗传漂移现象。

The gene flow ( Nm). was 0.4683, suggesting that genetic drift between populations caused local genetic differentiation and therefore, population divergence.

基因流（Nm）为0.4683，说明群体间遗传漂移引起了当地遗传差异及群体分化。

Cultural drift is a process roughly analogous to genetic drift in evolutionary biology.

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。

This ability decreases the negative effects of drift and inbreeding on genetic diversity in small populations.

这主要是由于其有很强的萌蘖繁殖能力,这种无性繁殖方式降低了小种群中遗传漂变和近交对遗传多样性的影响,使七子花的遗传变异得到维持.

Scientists have found another kind of genetic drift in neutral traits.

除此而外,科学工作者还发现中性特征方面的另外一种遗传偏移.

Minimizing the genetic drift in fertility was key to the purification and reproduction of thermo photo sensitive genic male sterile ( TPSGMS) lines of wheat.

最大限度控制育性的遗传漂移，是小麦温光敏核不育系提纯中要解决的主要问题。

Moreover, " genetic drift 、 the neutral theory and molecular evolution " also are brought into the system of curriculum content.

另外, 把 “ 遗传漂变、中性学说和分子进化 ” 也纳入课程内容体系中.

Genetic drift analysis of generalized crossover

广义交叉的遗传漂移分析

Random genetic drift has certainly played a big role in human evolution.

随机遗传漂变在人类进化过程中无疑起到了很大的作用.

Genetic drift reduces diversity in populations more quickly than mutation can introduce it.

遗传漂变减少人口差异的速度比变异要快得多。

Much change is due to random genetic drift rather than positive selection.

许多生物变化源于基因的随机漂变而非主动选择.

The question regarding is taken applicable only with respect to genetic drift.

因此近来繁殖问题只选用于遗传漂变.

Another possible reason of high differentiation, could be from the reduced population size that induced the genetic drift.

另外，也可能是在其进化过程中，由于居群的缩小而发生了遗传漂变。

They accumulate mutations in their DNA by a process known as genetic drift and there are few selection pressures around to curb these mutations.

它们通过一种称为遗传漂变（genetic drift）的过程积累它们的DNA的突变，而且几乎没有抑制这些突变的选择压力。

Whether speciation is achieved normally via genetic drift or natural selection is the subject of much ongoing discussion.

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。