constitutive heterochromatin


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constitutive heterochromatin

[′kän·stə‚tüd·iv ¦hed·ə·rō′krō·məd·ən]
(genetics)
A type of heterochromatin that is always condensed and is often centered on either side of the centromere, and that stains to give a C band.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Hybridization experiments with suppression resulted in labeling of all the autosomal and X chromosomes constitutive heterochromatin of each species (Figure 4).
Mutability of constitutive heterochromatin (C-bands) during eukaryotic chromosomal evolution and their cytological meaning.
Constitutive heterochromatin regions are found at or around centromeres and telomeres using the C-banding method.
The distribution of constitutive heterochromatin (C-banding) in this specimen showed pericentromeric bands in all autosomes.
The analysis of the C-banding pattern revealed large blocks of constitutive heterochromatin located on the pericentromeric regions of all chromosomes (Figure 2), and the first pair presented a completely heterochromatic long arm.
Constitutive heterochromatin regions (C-bands) were revealed using the method of Summer (1972), using propidium iodide as a counterstain.
C banding by constitutive heterochromatin was located in pericentromeric and telomeric position.
Morphological variations of constitutive heterochromatin are frequently detected during routine cytogenetic analysis.
The latest research for examining constitutive heterochromatin, pathology-related inclusions and sumoylation are also discussed.
Constitutive heterochromatin blocks were located at centromeric and telomeric regions of practically all chromosomes, some being more conspicuous than others.
Constitutive heterochromatin was located only at telomeric regions in tetraploid B.