Nucleolar Organiser Regions

  • J. C. E. Underwood


Nucleolar organiser regions (NORs) are the genomic DNA segments encoding for ribosomal RNA. They can be visualised in chromosome preparations and in interphase nuclei because each NOR is associated with argyrophilic protein; the silver-stained structures thus demonstrated are called AgNORs.


Proliferate Cell Nuclear Antigen Interphase Nucleus Nucleolar Organiser Region Acrocentric Chromosome Hydatidiform Mole 
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© Springer-Verlag London Limited 1992

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  • J. C. E. Underwood

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