The idea that transposableelements (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。
2
Noncoding DNA, containing introns, repetitive elements, and potentially active transposable elements, requires effective mechanisms for its long-term silencing.