一般讲，区别种比特征种更重要一些。
Generally, differential-species have had greater importance than character-species.
它使科学家转移基因不会混种本质上的区别种类之间。
It enables scientists to transfer genes between different species that would not interbreed in nature.
它使科学家转移基因不会混种本质上的区别种类之间。
It enables scientists to transfer genes between different species that would not interbreed in nature.
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