举个例子来说，人类基因代码有大约8%属于内源性的逆转录病毒。
The human genome, for example, is thought to owe some 8 percent of its code to endogenous retroviruses.
方法采用半定量pcr方法检测了我国四种小型猪内源性逆转录病毒基因的拷贝数。
Methods Semi-quantitative PCR method was used in this research to estimate PERV copy-number of four mini-pigs in China.
从遗传角度推算，猪内源逆转录病毒大约在3千万年前整合到了猪的基因组内。
From the context of genetic distance, it was estimated that the viruses integrated into the pigs' genome about 30 million years ago.
从遗传角度推算，猪内源逆转录病毒大约在3千万年前整合到了猪的基因组内。
From the context of genetic distance, it was estimated that the viruses integrated into the pigs' genome about 30 million years ago.
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