Ultrastructural and immunocytochemical analysis of the XY body in rat and Guinea pig.


The formation of the XY body involves the compaction of the extended chromatin to form a mesh of fibrogranular structures. During this process the ribonucleoprotein particles (RNP), which were associated with the chromatin filaments progressively disappear. High resolution immunolocalization indicates that the mature XY body does not contain RNA polymerase… (More)


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