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Nucleolar Organizer Region
Definition 1
Nucleolar organizer regions (NORs), which are loops of DNA containing ribosomal RNA genes, have been shown to correlate with cell proliferation and malignant transformation. (NCI Thesaurus)
Definition 2
The chromosome region which is active in nucleolus formation and which functions in the synthesis of ribosomal RNA. (NLM, Medical Subject Headings)
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A header concept for chemicals that are the building blocks of inherited genetic information. The monomer structure (nucleoside) contains either a purine…
Type of substance that may be described as a linear sequence of nucleosides typically linked through phosphate esters.
