正是在这些种群中，我们开始看到自然色彩的基因构成发生了真正的变化。
It's in these populations that we begin to see real changes in the genetic makeup of natural coloring.
我们有了关于蛇类进化的新概念以及新的 DNA 数据，所有这些都是关于蛇毒基因构成的信息。
We have these new concepts of snakes' evolution and a new DNA database, all these information on the genetic makeup of snake venom.
在研究玉米的基因构成时，芭芭拉·麦克林托克发现了一种新的突变基因，这一发现使人们对细胞分化有了更深入的了解。
While studying the genetic makeup of corn, a new class of mutant genes was discovered by Barbara McClintock, a discovery which led to greater understanding of cell differentiation.
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