Nucleolus organizer regions (NORs) are chromosomal regions crucial for the formation of the nucleolus. (wikipedia.org)
NORs can also be seen in nucleoli using silver stain, and that is being used to investigate cancerous changes. (wikipedia.org)
The distal flanking junction (DJ) of the NORs has been shown to associate with the periphery of nucleoli. (wikipedia.org)
The karyotype and distribution of constitutive heterochromatin and nucleolus organizer regions (NORs) of Anatolian leuciscine endemic to Lake Beysehir, Squalius anatolicus (Bogutskaya, 1997) were analyzed respectively using conventional Giemsa-staining, C-banding and Ag-impregnation. (egejfas.org)
An interstitial nucleolus organizer region in the long arm of human chromosome 7: cytogenetic characterization and familial segregation. (cs-tl.de)
In 1888, Heinrich W. Waldeyer introduced the name "stained body" as "chromosome" ( Waldeyer, 1888 ) for what Gregor Mendel already postulated as "Kopplungsgruppen", which refers to "linked up groups" in German ( Mendel, 1866 ). (frontiersin.org)
Nucleolar1
Characterization of eight species of Anostomidae (Cypriniformes) fish on the basis of the nucleolar organizing region. (egejfas.org)
Chromosomes1
There are also DNA sequences related to rDNA that are on other chromosomes and may be involved in nucleoli formation. (wikipedia.org)
Karyotype1
In karyotype analysis, a silver stain can be used to identify the NOR. (wikipedia.org)
Teleostei1
Nuclear DNA content in 20 species of Siluriformes (Teleostei: Ostariophysi) from the Neotropical region. (geneticsmr.com)
Human1
The exact sequence of these regions is not included in the human reference genome as of 2016 or the GRCh38.p10 released January 6, 2017. (wikipedia.org)