Free Content Polymorphism of Nucleolar Organizer Regions on the 8th Pair of Pig Chromosomes

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Polymorphism of nucleolar organizer regions on the 8th pair of pig chromosomes was analysed. The relative size of silver stained NORs was measured in metaphasal plates of 30 animals. The relative size of silver stained NORs ranged from 0.102 to 0.188 m2 in males and from 0.119 to 0.208 m2 in females. The most frequently observed nucleolar organizer regions represented the third and the fourth size category (26.67% and 23.33% individuals, respectively).


Document Type: Research Article


Publication date: October 1, 2005

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  • Folia biologica is an international quarterly journal that publishes papers on the broad field of experimental zoology, nuclear and chromosome research, and also ultrastructural studies. All papers are subject to peer reviews. Indexed in: ISI Master Journal List, Current Contents, Polish Scientific Journals Contents. I.F. 0.667
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