Structural organization of ribosomal cistrons in human nucleolar organizing chromosomes.
The variable morphology of nucleolar organizer regions (NORs) of human acrocentric chromosome 13 was studied in detail by the N-banding technique. It was demonstrated that NOR may become further segmented and several hypotheses have been proposed for structural variability. The polymorphic nature of NORs may have an important significance in human evolution.
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RS
Verma
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J
Rodriguez
D001773:Blood Cells / Q000166:cytology; D002871:Chromosome Banding; D002901:Chromosomes, Human, 13-15 / Q000032:analysis*; D005796:Genes; D006801:Humans; D009697:Nucleolus Organizer Region / Q000032:analysis*; D012335:RNA, Ribosomal / Q000032:analysis; D013194:Staining and Labeling
D012335:RNA, Ribosomal