一种特别的转位子最早出现在一百万年前。
One particular transposon first appeared about a million years ago.
研究人员构建了转位子，通过转位子携带治疗基因进入靶细胞的DNA 。
The researchers constructed the transposons in such a way that they can carry the therapeutic gene into the target cell DNA.
转位子是一种移动的DNA分子，它通过可以通过“剪切和粘贴”机制融入异体的DNA分子。
Transposons are mobile DNA elements that can integrate into 'foreign' DNA via a 'cut-and-paste' mechanism.
位置固定的转位子第一次出现是在一百万年前，通过观察现在这些序列的排列顺序，科学家们就可以了解到那个时代的人口数量。
One particular transposon first appeared about a million years ago. And by seeing where these sequences now sit, scientists can get a sense of the size of the breeding population back then.
位置固定的转位子第一次出现是在一百万年前，通过观察现在这些序列的排列顺序，科学家们就可以了解到那个时代的人口数量。
And by seeing where these sequences now sit, scientists can get a sense of the size of the breeding population back then.
转位子一种脱氧核糖核酸片断，它能够移到同一个或另一个染色体、质体或细胞上的新位置，并转录各种基因的特性，如对抗菌体的抵抗力。
DNA that is capable of moving to a new position within the same or another chromosome, plasmid, or cell and thereby transferring genetic properties such as resistance to antibiotics.
转位子一种脱氧核糖核酸片断，它能够移到同一个或另一个染色体、质体或细胞上的新位置，并转录各种基因的特性，如对抗菌体的抵抗力。
DNA that is capable of moving to a new position within the same or another chromosome, plasmid, or cell and thereby transferring genetic properties such as resistance to antibiotics.
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