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Heterochromatin, colchicine, and karyotype
Chromosoma, 1965Species of Chilocorus differ in chromosome number owing to centric fusion of metacentric chromosomes. The concomitant loss of arms is tolerated because in all unfused chromosomes one arm is completely heterochromatic, the other euchromatic. Under the influence of colchicine, the arms of unfused and fused chromosomes contract differentially.
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Nature, 1944
IT has long been known that some chromosomes, or chromosome segments, respond to staining during mitosis or meiosis in a different way from the rest of the set. They are called 'heterochromatic' to distinguish them from the 'euchromatic' rest of the set taken as a standard.
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IT has long been known that some chromosomes, or chromosome segments, respond to staining during mitosis or meiosis in a different way from the rest of the set. They are called 'heterochromatic' to distinguish them from the 'euchromatic' rest of the set taken as a standard.
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Experimental Cell Research, 1983
The measurement of chromomycin A3/DAPI fluorescence ratios is shown to allow base content determinations in eu- and heterochromatic regions of interphase cell nuclei. The base content values obtained in chromocenters and euchromatin of Scilla sibirica agree with those measured earlier [12] on the band and non-band areas of the chromosomes of this ...
Ursula Leemann, Fritz Ruch
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The measurement of chromomycin A3/DAPI fluorescence ratios is shown to allow base content determinations in eu- and heterochromatic regions of interphase cell nuclei. The base content values obtained in chromocenters and euchromatin of Scilla sibirica agree with those measured earlier [12] on the band and non-band areas of the chromosomes of this ...
Ursula Leemann, Fritz Ruch
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Heterochromatin: a meiotic matchmaker?
Trends in Cell Biology, 1997During meiosis, the pairing of chromosomes is crucial for a successful partitioning of the genetic material and its transmission into the developing gamete. The classical view of meiotic pairing involves recombination between homologues as an integral part of the pairing mechanism. But, in cases where no recombination occurs, how do chromosome partners
Hubert Renauld, Susan M. Gasser
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Unfolding the mysteries of heterochromatin
Current Opinion in Genetics & Development, 1998The function of heterochromatin has not been well understood. Recent studies, however, demonstrate that heterochromatin is essential for proper chromosome behavior. The silencing of euchromatic genes by heterochromatin has been exploited to understand the molecular nature of heterochromatin.
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A new function for heterochromatin
Chromosoma, 1994Meiotic pairing has now been shown to require heterochromatic homology and to be sensitive to repeat number in both male and female Drosophila. The increased pairing ability of repetitive sequences could be one reason that most eukaryotes allow the accumulation of tandem repeated elements.
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Nature Reviews Cancer, 2011
A recent Nature paper describes a new function for BRCA1 in regulating the silencing of pericentric heterochromatin.
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A recent Nature paper describes a new function for BRCA1 in regulating the silencing of pericentric heterochromatin.
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Expanding the boundaries of heterochromatin.
Genetica, 2003PIMPINELLI, Sergio, WAKIMOTO B.
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