Whole ORF2 genes of 173 positive clinical PCV2 samples from Beijing and other areas were amplified by PCR and followed by restriction fragment length polymorphism (RFLP) analysis.

采用聚合酶链式反应（PCR）技术对来自北京等地区的173份PCV2阳性样本的全长ORF2基因进行了扩增，并对扩增产物进行了限制性片段长度多态性（RFLP）分析。

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An extended forensic is presented and analysis model of document fragment is analysed for efficiently investigating document data based on digital system.

为进行文档碎片取证调查，提出了一个文档碎片取证分析模型。

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Sequence analysis showed the amplified fragment was the TIV1 fragment of the vacuolar invertase gene.

测序结果表明，所获得的片段为番茄液泡转化酶基因TIV1的片段；

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In the cases of both fragment analysis and microsatellites, population geneticists can generally put a number on that likelihood.

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