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Nucleolus organizer and satellite association in a variant D-group chromosome

✍ Scribed by A. Capoa; M. Ferraro; N. Archidiacono; F. Pelliccia; M. Rocchi; A. Rocchi

Publisher
Springer
Year
1976
Tongue
English
Weight
380 KB
Volume
34
Category
Article
ISSN
0340-6717

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✦ Synopsis

A No. 15 chromosome with a short arm longer than usual is observed in two phenotypically normal brothers. This chromosome appears to have no visible satellite, shows no N-band staining, and is never involved in satellite association. These results have led us to the conclusion that this chromosome lacks the nucleolus organizer region.

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✍ A. Capoa; M. Ferraro; F. Menendez; C. Mostacci; F. Pelliccia; A. Rocchi πŸ“‚ Article πŸ“… 1978 πŸ› Springer 🌐 English βš– 331 KB

The frequency of involvement in satellite association and the frequency of selective staining of the secondary constrictions with silver solutions have been studied in five phenotypically normal individuals, all carriers of morphological variants of the nucleolus organizing region (NOR). The results

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Three cases of morphologic variants of human D-or G-group chromosomes have been studied by N-and Ag-AS banding techniques. The results confirm our previous findings about the localization of nucleolus organizers on the secondary constrictions of acrocentric chromosomes. Preliminary results on the di