Chromosoma
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Die automiktischen Vorgänge im Ei der tetraploid parthenogenetischen Solenobia triquetrella F. R. (Psychidae, Lepid.)
Chromosoma - Tập 4 - Trang 91-107 - 1950
Scanning electron microscope analysis of structural changes and aberrations in human chromosomes associated with the inhibition and reversal of inhibition of ultraviolet light induced DNA repair
Chromosoma - Tập 96 - Trang 39-44 - 1987
Metaphase chromosomes appear decondensed in preparations from mitotic cells that
have been irradiated with ultraviolet light (UV) and incubated with inhibitors
of DNA synthesis; under these conditions DNA repair is inhibited and both single
and double strand DNA breaks accumulate. After reversal of the inhibition
chromosomes are condensed, but are often damaged. In this paper we show by
scanning e...
Localization and characteristics of DNA underreplication zone in the 75C region of intercalary heterochromatin in Drosophila melanogaster polytene chromosomes
Chromosoma - - 2009
Localization of actin-related sequences by in situ hybridization to R-banded human chromosomes
Chromosoma - Tập 89 - Trang 163-167 - 1984
Using a cytoplasmic actin cDNA probe we have localized a number of actin
sequences in the human genome using a novel in situ hybridization technique.
Metaphase chromosomes treated to produce R-bands were directly annealed with
125I-labeled actin probe. Under these conditions many regions of the genome were
apparently denatured enough to be capable of hybridizing with the probe. Most of
the actin s...
Microdissection and sequence analysis of pericentric heterochromatin from the Drosophila melanogaster mutant Suppressor of Underreplication
Chromosoma - Tập 111 - Trang 114-125 - 2002
In the Suppressor of Underreplication (SuUR) mutant strain of Drosophila
melanogaster, the heterochromatin of polytene chromosomes is not underreplicated
and, as a consequence, a number of β-heterochromatic regions acquire a banded
structure. The chromocenter does not form in these polytene chromosomes, and
heterochromatic regions, normally part of the chromocenter, become accessible to
cytologica...
3H-Uridine labelling patterns in the Drosophila melanogaster salivary gland chromosomes X, 2R and 3L
Chromosoma - Tập 49 - Trang 219-231 - 1975
RNA-synthesizing regions in the polytene chromosomes of D. melanogaster were
located; the level of 3H-uridine incorporation in each of these regions was
determined. — It was found that the number of RNA-synthesizing regions is much
larger than the number of puffs: almost all the chromosome regions are labelled
except dense bands. In most cases, “non-puffed” regions label 10 to even 100
times weake...
The process of a Y-loss event in an XO/XO mammal, the Ryukyu spiny rat
Chromosoma - Tập 119 - Trang 519-526 - 2010
The Ryukyu spiny rat, Tokudaia osimensis, has an XO/XO sex chromosome
constitution, lacking a Y chromosome and the mammalian sex-determining gene SRY.
To investigate the Y-loss event, we traced three proto-Y-linked genes, RBMY1A1,
EIF2S3Y, and KDM5D, in the genome. The original Y-linked RBMY1A1 was lost as
well as SRY, and the remaining RBMY1A1 was a processed pseudogene on autosome.
In contrast, ...
The labeling efficiency of human telomeres is increased by double-strand PRINS
Chromosoma - Tập 113 - Trang 204-209 - 2004
Telomeres are composed of tandem repeated sequences, TTAGGG, that can be
detected either by fluorescence in situ hybridization (FISH), more efficiently
by using a peptide nucleic acid (PNA) probe, or by the primed in situ (PRINS)
technique. However, the efficiency of human telomere labeling using PRINS is
somewhat lower than the efficiency using PNA-FISH. To solve this problem, we
developed a doub...
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