小RNA病毒科属于正链RNA病毒，该科各属病毒基因组结构和基因表达机制具有保守性。
The viruses of Picornaviridae are positive-strand RNA viruses, the genome organization and mechanisms of gene expression belong to highly conserved among them.
运用长时间活细胞荧光影像捕获和荧光漂白恢复等技术手段，研究了脊髓灰质炎病毒正链rna在活细胞内的行为特征。
By using living cell imaging, time-lapse monitoring and FRAP technique, the intracellular behavior of poliovirus plus-strand RNA was studied in living host cells.
HCV为一单股正链r NA病毒，整个基因组具有高度变异性。
HCV is a single - stranded positive sense RNA virus, the whole genome displaying a higher degree of genetic variability.
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