|Citation||Endow, S.A. (1982). Molecular characterization of ribosomal genes on the Ybb- chromosome of Drosophila melanogaster. Genetics 102(): 91--99. (Export to RIS)|
|Publication Type||Research paper|
|PubMed Abstract||The question of whether the Ybb- chromosome contains ribosomal genes has been examined by using Southern blot analysis and comparing rDNA hybridization patterns for X/X and X/Ybb- DNA. The results demonstrate that the Ybb- chromosome contains sequences that hybridize to an rDNA probe under stringent conditions. Differential hybridization of some of these sequences with DNAs corresponding to different regions of a complete ribosomal gene repeat provides evidence that some of the genes on the Ybb- chromosome are type 2 repeats. Because data obtained by other workers suggest that type 2 repeats are transcribed only to low levels, these repeats may be classed as "nonfunctional". A further finding is that the ribosomal genes on the Ybb- chromosome do not undergo multiple rounds of DNA replication during polytenization of X/Ybb- cells.|
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|Language of Publication||English|
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