Results 191 to 200 of about 25,717 (206)

Constitutive heterochromatin studies in patients with solid tumors

Journal of Cancer Research and Clinical Oncology, 1986
Constitutive heterochromatin of chromosomes 1, 9, and 16 was studied in 101 patients with solid tumors and 85 controls. Lymphocyte cultures were used for performing C-banded chromosome preparations. Two homologous chromosomes were regarded as heteromorphic when there was a 25% difference between their C-band size or when they fell into different ...
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Constitutive heterochromatin and transposable elements in Drosophila melanogaster

Genetica, 1997
Several families of transposable elements (TEs), most of them belonging to the retrotransposon category, are particularly enriched in Drosophila melanogaster constitutive heterochromatin. The enrichment of TE-homologous sequences into heterochromatin is not a peculiar feature of the Drosophila genome, but appears to be widespread among higher ...
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Sex determination and Y chromosome constitutive heterochromatin

Current Research in Biochemistry and Molecular Biology, 2019
In many animals, including us, the genetic sex is determined at fertilization by sex chromosomes. Seemingly, the sex determination (SD) in human and animals is determined by the amount of constitutive heterochromatin on Y chromosome via cell thermoregulation.
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Isolation of the Constitutive Heterochromatin from Mouse Liver Nuclei

2008
A method for isolation of constitutive heterochromatin (chromocenters) from nuclei of mouse liver cells is described. This method is based on the higher resistance of chromocenters to low ionic strength treatment as compared with that of nucleoli and euchromatin.
Olga V, Zatsepina, Oxana O, Zharskaya, Andrei N, Prusov   +2 more
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Constitutive heterochromatin in Ehrlich ascites carcinoma cells.

Neoplasma, 1976
The study of the distribution of constitutive heterochromatin in the chromosomes of Ehrlich ascites carcinoma cells has revealed changes in both the amount and the spatial distribution of this class of DNA. The marker chromosomes were identified and the probable mechanism of their formation was discussed.
C D, Olinici, O, Dobáy, M, Almasan
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[The many faces of constitutive heterochromatin].

Medecine sciences : M/S, 2008
Constitutive heterochromatin, key for the structuration of the centromeres, was long thought as a transcriptionally inert compartment, relatively invariant in composition and structure. Numerous studies have now challenged this view by showing the versatility of these epigenetically defined regions.
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Constitutive heterochromatin in Rana ridibunda

Journal of Heredity, 1977
P. RAICU, C. GEORMANEANU
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Fluorescence of constitutive heterochromatin of Microtus agrestis

Experimental Cell Research, 1972
A B, Mukherjee, H M, Nitowsky
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Various Clinical Manifestations with Constitutional Heterochromatin Variants

Cytogenetics and cell genetics, 1997
We present our results from 1986-1996 and constitutional chromosome heterochromatin variations in various clinical cases. According to ISCN the heterochromatin variation is not mentioned at the final formula. The significance of constitutional chromosome heterochromatin variations in our clinical cases is discussed.
Rešić, Biserka, Čulić, Vida, Čulić, Srđana   +2 more
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Constitutive heterochromatin during early embryogenesis of Microtus agrestis

Experimental Cell Research, 1970
J C, Lee, J J, Yunis
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