Results 1 to 10 of about 419,615 (160)

Biological effects of conventional and ultra high dose rate radiation in human cells [PDF]

open access: yesScientific Reports
FLASH radiotherapy (FLASH-RT) that uses an ultra-high dose rate (UHDR) radiation is emerging as an effective cancer treatment modality but the biological effects of UHDR are not fully understood.
Terri L. Ryan   +13 more
doaj   +2 more sources

Chromosome Painting in Cercopithecus petaurista (Schreber, 1774) Compared to Other Monkeys of the Cercopithecini Tribe (Catarrhini, Primates)

open access: yesLife, 2023
The Cercopithecini tribe includes terrestrial and arboreal clades whose relationships are controversial, with a high level of chromosome rearrangements.
Vanessa Milioto   +2 more
doaj   +1 more source

Exploring the Relationship between Spontaneous Sister Chromatid Exchange and Genome Instability in Two Cryptic Species of Non-Human Primates

open access: yesAnimals, 2023
There are extensive studies on chromosome morphology and karyotype diversity in primates, yet we still lack insight into genomic instability as a key factor underlying the enormous interspecies chromosomal variability and its potential contribution to ...
Mariela Nieves   +4 more
doaj   +1 more source

Spatial positioning of all 24 chromosomes in the lymphocytes of six subjects: evidence of reproducible positioning and spatial repositioning following DNA damage with hydrogen peroxide and ultraviolet B. [PDF]

open access: yesPLoS ONE, 2015
The higher-order organization of chromatin is well-established, with chromosomes occupying distinct positions within the interphase nucleus. Chromatin is susceptible to, and constantly assaulted by both endogenous and exogenous threats.
Dimitrios Ioannou   +5 more
doaj   +1 more source

No evidence for a second evolutionary stratum during the early evolution of mammalian sex chromosomes. [PDF]

open access: yesPLoS ONE, 2012
Mammalian sex chromosomes originated from a pair of autosomes, and homologous genes on the sex chromosomes (gametologs) differentiated through recombination arrest between the chromosomes.
Yukako Katsura, Yoko Satta
doaj   +1 more source

Unified theory of human genome reveals a constrained spatial chromosomal arrangement in interphase nuclei [PDF]

open access: yes, 2015
We investigate a densely packed, non-random arrangement of forty-six chromosomes (46,XY) in human nuclei. Here, we model systems-level chromosomal crosstalk by unifying intrinsic parameters (chromosomal length and number of genes) across all pairs of ...
Fatakia, Sarosh N.   +2 more
core   +2 more sources

Mutational Dissection of Telomeric DNA Binding Requirements of G4 Resolvase 1 Shows that G4-Structure and Certain 3'-Tail Sequences Are Sufficient for Tight and Complete Binding. [PDF]

open access: yesPLoS ONE, 2015
Ends of human chromosomes consist of the six nucleotide repeat d[pTTAGGG]n known as telomeric DNA, which protects chromosomes. We have previously shown that the DHX36 gene product, G4 Resolvase 1 (G4R1), binds parallel G-quadruplex (G4) DNA with an ...
Philip J Smaldino   +7 more
doaj   +1 more source

Detection of monosomy 7 in interphase cells of patients with myeloid disorders [PDF]

open access: yes, 1990
Six patients, five with acute myeloid leukemia (AML) and one with a myelodysplastic syndrome (MDS), were found to have monosomy 7 by conventional cytogenetics at diagnosis.
Cremer, Thomas   +5 more
core   +1 more source

Karyotypic features including organizations of the 5S, 45S rDNA loci and telomeres of Scadoxus multiflorus (Amaryllidaceae)

open access: yesComparative Cytogenetics, 2016
Scadoxus multiflorus Martyn, 1795 is an ornamental plant with brilliantly colored flowers. Even though its chromosomes are rather large, there is no karyotype description reported so far.
Pansa Monkheang   +3 more
doaj   +3 more sources

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

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