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线粒体DNA是存在于线粒体内的双链环状DNA分子,tRNALeu（UUR）基因是线粒体DNA的突变热点区域。目前已发现的tRNALeu（UUR）基因的点突变种......
National slur is a linguistic form expressing unequal treatment of one ethnic group by another.It is the direct result o......
