Non-sister chromatids of homologous chromosomes may exchange segments over regions of homology.

同源染色姐妹染色单可以在同源区域交换片段。

And so continuity implies common ancestry or homology.

因此，连续性意味着共同祖先或同源性。

In tracing the homologies of any part in different members of the same class, nothing is more common, or, in order fully to understand the relations of the parts, more useful than the discovery of rudiments.

在追溯同一纲不同成员任何部分同源性时，没有什么比发现胚芽更常见， 或者，为了充分部分之间关​​系， 更有用了。

Next, homologies or those are characteristics organisms have that show common ancestry.

接下来是同源性，即那些显示生共同祖先特征。

How inexplicable are the cases of serial homologies on the ordinary view of creation!

用普通创造观来看， 连续同源情况是多么令人费啊！

Homology or homologous means that they come from the same ancestry.

同源性或同源意味着它们源自相同祖先。

So they show homology through evolution.

所以它们通过进化显示出同源性。