Selective breeding over time created these wide variations, but the process depended on nature to produce the desired gene.

长时间选择性的培育创造了这些广泛的变种，但是这个过程还是要依赖大自然来产生出所需的基因。

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Success in any cloning experiment depends on being able to identify the desired gene sequence among the many different recombinants that may be produced.

任何克隆实验的成功依赖于从很多不同的重组子中鉴别目的基因序列。

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Humans then chose to mate individual animals or plants that carried the particular gene in order to make the desired characteristics more common or more pronounced.

之后人类选择具有独特基因的动物或植物个体进行配对，使它们那些为人所需的特性变得更为普遍和显著。

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That part, the insertion of the desired gene into the target crop's chromosomes, can be done in a variety of ways.

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