Indeed, we scientists use metaphors all the time when we communicate with one another: we speak of selfish DNA and orphan receptors and proteins that serve as chaperones and genes that hitchhike.

的确，我们科学家彼此交流时，一直都在用比喻：我们说自私的DNA，孤儿接收者，蛋白质像是伴侣，而基因像是搭车旅行。

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The idea that transposable elements (TEs) are mainly 'selfish' or 'junk' DNA with little importance for host evolution has challenged.

转座因子主要是一些“自在”或“无功能”的DNA，其对宿主进化无关紧要的观点受到了质疑。

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Rather, it is selfish or junk DNA, a molecular parasite that, over many generations, has disseminated itself throughout the genome through some sort of transpositional process.

FORBES: The Myth ... of the Myth of Junk DNA