Related Experiment Video
Updated: Jul 17, 2026
04:59
Single Nucleotide Polymorphism-sensitive FISH Detection of Locus-specific Ribosomal RNA Transcription in Drosophila melanogaster
Published on: March 28, 2025
Iso-Alleles at the Bobbed Locus in Drosophila Hydei Populations
1College of Wooster, Wooster, Ohio.
Genetics
|November 1, 1944
Abstract
No abstract available in PubMed .
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In 1928, a German botanist Emil Heitz observed the moss nuclei with a DNA binding dye. He observed that while some chromatin regions decondense and spread out in the interphase nucleus, others do not. He termed them euchromatin and heterochromatin, respectively. He proposed that the heterochromatin regions reflect a functionally inactive state of the genome. It was later confirmed that heterochromatin is transcriptionally repressed, and euchromatin is transcriptionally active chromatin.
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