动物45s前rrna经历了一系列剪切,释放32s和20s两个前rna,最后释放18s
图1. hcinap 参与18s rrna 剪切的分子机理
the phylogenetic trees of cyanobacteria inferred from 16s rrna
28s:18s rrna ratio - 走看看
ns4:5' -cttccgtcaattcctttaag-3'扩增真菌18s rrna基因,所得18s rrna
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