Results 51 to 60 of about 290,609 (226)

Theory on the mechanism of DNA renaturation: Stochastic nucleation and zipping [PDF]

open access: yes, 2015
Renaturation of complementary single strands of DNA is one of the important processes that requires better understanding in the view of molecular biology and biological physics.
Murugan, Rajamanickam   +1 more
core   +6 more sources

Repetitive sequences: the hidden diversity of heterochromatin in prochilodontid fish

open access: yesComparative Cytogenetics, 2015
The structure and organization of repetitive elements in fish genomes are still relatively poorly understood, although most of these elements are believed to be located in heterochromatic regions.
Maria L. Terencio   +8 more
doaj   +1 more source

Characterization of two marker chromosomes in a patient with acute nonlymphocytic leukemia by two-color fluorescence in situ hybridization [PDF]

open access: yes, 1993
A patient with acute nonlymphocytic leukemia (ANLL), M5b according to French-American-British (FAB) classification, showed monosomy 16, an extra 1p−, and a 21q+. These derivative chromosomes could not be defined by GTG-banding.
Anna Jauch   +26 more
core   +1 more source

Comparative repeatome analysis on Triatoma infestans Andean and Non-Andean lineages, main vector of Chagas disease.

open access: yesPLoS ONE, 2017
Triatoma infestans is the most important Chagas disease vector in South America. Two main evolutionary lineages, named Andean and non-Andean, have been recognized by geographical distribution, phenetic and genetic characteristics.
Sebastián Pita   +7 more
doaj   +1 more source

Embryo culture in presence of oviductal fluid induces DNA methylation changes in bovine blastocysts [PDF]

open access: yes, 2017
During the transit through the oviduct, the early embryo initiates an extensive DNA methylation reprogramming of its genome. Given that these epigenetic modifications are susceptible to environmental factors, components present in the oviductal milieu ...
Barrera, Antonio Daniel   +7 more
core   +1 more source

A species-specific satellite DNA family in the genome of the coffee root-knot nematode Meloidogyne exigua : Application to molecular diagnostics of the parasite [PDF]

open access: yes, 2002
A new Bg/II satellite DNA has been isolated, cloned and sequenced from the coffee root-knot nematode, Meloidogyne exigua (Nematoda: Tylenchida). It is represented as tandemly repeated sequences with a monomeric unit of 277 bp. The monomers are present at
Bongiovanni, Michel   +4 more
core   +2 more sources

Molecular cytogenetic analysis of genome-specific repetitive elements in Citrus clementina Hort. Ex Tan. and its taxonomic implications

open access: yesBMC Plant Biology, 2019
Background Clementine mandarin (Citrus clementina Hort. ex Tan.) is one of the most famous and widely grown citrus cultivars worldwide. Variations in relation to the composition and distribution of repetitive DNA sequences that dominate greatly in ...
Honghong Deng   +5 more
doaj   +1 more source

Rapid evolution of recombinant Saccharomyces cerevisiae for Xylose fermentation through formation of extra-chromosomal circular DNA. [PDF]

open access: yesPLoS Genetics, 2015
Circular DNA elements are involved in genome plasticity, particularly of tandem repeats. However, amplifications of DNA segments in Saccharomyces cerevisiae reported so far involve pre-existing repetitive sequences such as ribosomal DNA, Ty elements and ...
Mekonnen M Demeke   +3 more
doaj   +1 more source

Delineation of individual human chromosomes in metaphase and interphase cells by in situ suppression hybridization using recombinant DNA libraries [PDF]

open access: yes, 1988
A method of in situ hybridization for visualizing individual human chromosomes from pter to qter, both in metaphase spreads and interphase nuclei, is reported.
B Trask   +39 more
core   +1 more source

Silent but not static: accelerated base-pair substitution in silenced chromatin of budding yeasts. [PDF]

open access: yesPLoS Genetics, 2008
Subtelomeric DNA in budding yeasts, like metazoan heterochromatin, is gene poor, repetitive, transiently silenced, and highly dynamic. The rapid evolution of subtelomeric regions is commonly thought to arise from transposon activity and increased ...
Leonid Teytelman   +2 more
doaj   +1 more source

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