全部

1·In this paper, we are aimed to improve the spinosyn-producing strain by genome shuffling, optimization of fermentation process and scale-up of fermentation processes in 2.

本论文运用基因组重排技术对多杀菌素产生菌进行选育，并优化了其发酵工艺，最后进行了2。

2·Most variation in the human genome is neutral, meaning that it arose not by natural selection but by processes like harmless mutations and the random shuffling of the genome between generations.

人类的大多数变异基因都是中性的，这意味着变异之所以被激发不是出于自然选择，而是由于产生了良性变异或染色体在复制时候发生了混乱。