Much change is due to random genetic drift rather than positive selection. It could be called the survival of the luckiest.
许多变化源于基因的随机变异而非自由选择。我们可以称其为幸运者生存。
Neutral mutation — Evolution at the molecular level is primarily determined by mutational input and random genetic drift, rather than by natural selection.
天然突变——演化过程中在分子的层次上主要是经由随机的基因流而决定，并非借由天择所影响。
New versions of a gene can also become universal in a population through a random process known as genetic drift.
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。
And what about the process of random loss of genetic variants, which we call 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?
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。）
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