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. 1980;79(3):287-91.
doi: 10.1007/BF00327320.

Localization of the ribosomal RNA genes in Drosophila simulans

U Schäfer, M Schäfer

Localization of the ribosomal RNA genes in Drosophila simulans

U Schäfer et al. Chromosoma. 1980.

Abstract

In situ hybridization of cloned rRNA genes from Drosophila melanogaster to D. simulans metaphase chromosomes shows that in the tested wild type strains both sex chromosomes contain a nucleolus organizer region. Silver grain counts support the published data that the X chromosomal rRNA gene number is significantly higher than the Y chromosomal.

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