Number and size of nucleoli in the spermatocytes of European domestic goose (Anser anser)

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Title Number and size of nucleoli in the spermatocytes of European domestic goose (Anser anser)
Tytuł równoległy: Anzahl und Gröβe der Spermatozytennucleoli bei der europäischen Hausgans (Anser anser)
Autor: Andraszek, Katarzyna; Smalec, Elżbieta
URI: http://hdl.handle.net/11331/389
Date: 2007-10-01
Źródło: Archiv für Geflügelkunde. - 2007, vol. 71, iss. 5, pp. 237-240
Abstract: The basic nucleolus function is to form subunits of ribosomes and the transcription of genes encoding rRNA. The source of information on the activity of genes encoding rRNA may be an analysis of the number and size of nucleoli in the prophase of the first meiotic division or an analysis of nucleolar organizer regions. Meiotic chromosomes isolated from the nuclei of sixteen-week males of European domestic goose were evaluated in respect to the number and size of nucleoli in the cell. A varied number (from 1 to 4) and different size of nucleoli in the cells of examined individuals were found. Among the total number of 329 nucleoli 257 were classified as large and 72 as small ones.

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