It is of course possible that more genes will turn up in further studies that might close the gap.

更多的基因当然有可能会在出现在未来的可能弥合差距的研究中。

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As a result, they were able to bridge an important gap in the understanding of what causes genes to be turned on and off.

结果是：在有关导致基因打开与关闭的具体原因的理解方面，实现了一次认识水平上的飞跃。

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But a great gap still exists between domestic and international levels, such as cloning of novel or important genes and identifying their functions.

但是和国际水平相比差距依然很大，如在克隆新的、重要的基因方面远远落后，鉴定基因的功能方面比较薄弱等。

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