How about this random mutation stuff?

基因突变是什么呢？

And because viruses rapidly reproduce by the millions, they can quickly develop random mutations.

而且，因为病毒以数百万级迅速繁殖，他们可以快速发生随机突变。

As a result, through random mutation and genetic drift, over time offspring develop new traits and characteristics.

因此，通过随机突变和遗传漂变，随着时间的推移，后代会发展新的特性和特征。

The trait was first introduced by random mutation, which happened independently of each other in a few populations.

这种特性首先是通过随机突变引入的，在少数人群中彼此独立发生。

And becoming fully resistant to this level of destruction would involve much more than just a couple random mutations.

要想完全抵抗这种程度的破坏，需要的不仅仅是几个随机的突变。

Alright, right here, as a result, through random mutation and genetic drift, over time offspring develop new traits and characteristics.

好的，就在这，因此，通过随机突变和遗传漂变，随着时间的推移，后代发展出了新的特征和特性。

Sometimes they come from random mutations.

有时它们来自随机突变。

Of course, you know, what happened to Jason could have been some random genetic mutation.

当然，你知道，杰森身上发生的事情可能是某种随机的基因突变。

Silent genes accumulate random mutations, they reasoned, eventually rendering them useless.

他们推论不活动基因不断随机突变，最终致使它们变得没有用。

In biological systems, organisms may display new characteristics that result from random genetic mutations.

在生物系统中，生物体可能会显示出由随机基因突变引起的新特征。

Around 2.5 billion years ago, a random mutation occurred that was advantageous to cells, and they began using the energy of the sun to power their metabolism.

大约25亿年前，一种对细胞有利的随机突变发生了，细胞开始利用太阳的能量来促进新陈代谢。

But even with this, no two will be exactly the same and because of this, through random mutation and genetic drift, over time offspring develop new traits and characteristics.

但是即使是这样，也不会有两个完全一样的后代，也因为这一点，通过随机突变和遗传漂变，随时间的推移后代会发展出新的特质和特征。

Vestigial traits can persist when there's no incentive to lose them — but since there's also no incentive to keep them, random mutations will sometimes still eliminate them from part of the population.

如果没有诱因去除退化了的性状，它们就会持续存在——但由于也没有动机保留它们，随机突变有时仍会消除部分人的这一性状。

And it might occur to some of you that this seems to be an analogy with the Darwinian theory of natural selection where there's a random assortment of random mutations.

你们中的某些人可能会想到，这似乎与达尔文的自然选择理论类比，其中存在随机突变的随机分类。