Related Experiment Video

Updated: Aug 11, 2026

Combined DNA-RNA Fluorescent In situ Hybridization (FISH) to Study X Chromosome Inactivation in Differentiated Female Mouse Embryonic Stem Cells
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Combined DNA-RNA Fluorescent In situ Hybridization (FISH) to Study X Chromosome Inactivation in Differentiated Female Mouse Embryonic Stem Cells

Published on: June 14, 2014

Male-biased expression of X-chromosomal DM domain-less Dmrt8 genes in the mouse

Anne-Marie Veith1, Jürgen Klattig, Agnes Dettai

  • 1Department of Physiological Chemistry I, Biozentrum, University of Würzburg, Am Hubland, D-97074 Würzburg, Germany.

Genomics
|February 21, 2006
PubMed

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In most organisms, sex is determined by the ratio of X and Y chromosomes. However, in some organisms, such as Drosophila and C.elegans, sex is determined by the ratio of the number of X chromosomes to the number of sets of autosomes. The Y chromosome in Drosophila is active but does not determine sex. It contains genes responsible for the production of sperms in adult flies.  
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The extent of chromatin compaction can be studied by staining chromatin using specific DNA binding dyes. Under the microscope, the dense-compacted regions take up more dye, appearing darker, while the less-compact areas take up less dye and appear lighter. Based on the compaction level, chromatins are classified into two primary forms – euchromatin and heterochromatin.
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