Junk DNA may serve other, unknown purposes.

垃圾dna或许起其它作用，未知名的意图。

Between the genes lay long stretches of "junk DNA," incoherent, useless, and inert.

之间的基因奠定“垃圾dna”，语无伦次，没用，很长一段惰性。

The researchers uncovered the process by which this' junk DNA 'is made active, promoting cancer growth.

研究者提示了该“垃圾dna”被激活后促进肿瘤生长的过程。

There are many hypotheses, none conclusively established, for how junk DNA arose and why it persists in the genome.

有很多假使，最后没有一个被确定，如垃圾DNA怎样激活以及为什么存在于基因组中。

Until now, many biologists have regarded the majority of the genome as "junk DNA" carried from generation to generation but with no biological function.

到目前为止，许多生物学家已将多数基因组，视为代代相传、却没有生物功能的“垃圾DNA”。