Border Structure of Intercalary Heterochromatin Bands of <Emphasis Type="Italic">Drosophila melanogaster</Emphasis> Polytene Chromosomes |
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| Authors: | V A Khoroshko T Yu Zykova O O Popova I F Zhimulev |
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| Institution: | 1.Institute of Molecular and Cellular Biology, Siberian Branch,Russian Academy of Sciences,Novosibirsk,Russia;2.Novosibirsk State University,Novosibirsk,Russia |
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| Abstract: | The precise genomic localization of the borders of 62 intercalary heterochromatin bands in Drosophila polytene chromosomes was determined. A new type of bands containing chromatin of different states was identified. This type is a combination of the gray band and the intercalary heterochromatin band, creating a genetic structure that with a light microscope is identified as a continuous band. The border structure of such bands includes the coding regions of genes with ubiquitous activity. |
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