但是进化还需要反复复制和突变产生赖以选择的变异，从而给予适应性解决方案。

But evolution also requires repeated replication and mutation to generate the variation upon which selection works to give adaptive solutions.

youdao

他还指出，对于任何一种基因突变的化验分析都应作为补充试验，以此来反映不同机制所产生的变异。

He concluded that the assays for mutations in either gene should be considered complementary tests, reflecting mutations that occur through different mechanisms.

youdao

正如我在以往专栏中提及的那样，突变是DNA的意外变异，也是进化的原材料。

As I've mentioned in previous columns, mutations - accidental changes to DNA - provide the raw material for evolution.

youdao