Nucleolarstructure is one of the most obvious symbols. However, little is known about its evolutionary origin. Some previous studies implied that Giardia has no nucleolus.
These changes are discussed in relation to current knowledge about nucleolarstructure as well as the organization of chromosomes and transcription factories in nuclear regions outside the nucleolus.
讨论了涉及到有关核仁结构的当前知识的这些变化，以及在核仁外部的细胞核区域中染色体和转录工厂的组织。
3
In all the nucleolar cycle, nucleolar FCs and DFCs structure changed.