Nucleolus-organizing regions in salivary gland chromosomes of Drosophila melanogaster |
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| Authors: | B. P. Kaufmann |
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| Affiliation: | (1) Department of Genetics, Carnegie Institution of Washington, Cold Spring Harbor, N. Y. |
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| Abstract: | Summary The nucleolus of the salivary gland nucleus of Drosophila melanogaster is formed by nucleolus-organizing regions which exist in the heterochromatin of the sex chromosomes. This interpretation is supported by the discovery of a series of induced chromosomal alterations involving transfer of nucleolus-forming regions to euchromatic sections of the chromosomes. |
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