Results 51 to 60 of about 1,728,680 (388)

Analysis of high risk factors for chromosomal aberrations in peripheral blood lymphocytes of 200 radiation workers in Hainan Province

open access: yesShanghai yufang yixue, 2023
ObjectiveTo investigate the current status and high-risk factors of chromosomal aberrations in peripheral blood lymphocytes (PBL) of radiation workers in Hainan Province.MethodsA total of 200 radiological workers who underwent occupational health ...
ZHANG Yuhong   +5 more
doaj   +1 more source

Genetic Requirements for Intra-Chromosomal Deletions [PDF]

open access: yes, 2020
Chromosomal deletions are one of the most dangerous types of DNA damage and often arise as a result of inappropriately repaired DNA double strand breaks (DSB).
McPherson, Matthew
core  

Higher diversity of Rhizobium leguminosarum biovar viciae populations in arable soils than in grass soils [PDF]

open access: yes, 1999
The bacterial genetic diversity after long-term arable cultivation was compared with that under permanent grassland using replicated paired contrasts, Pea-nodulating Rhizobium leguminosarum populations were sampled from pairs of arable and grass sites at
Palmer, K M, Young, J P W
core   +2 more sources

A Mechanism Linking Extra Centrosomes to Chromosomal Instability

open access: yesNature, 2009
Chromosomal instability (CIN) is a hallmark of many tumours and correlates with the presence of extra centrosomes. However, a direct mechanistic link between extra centrosomes and CIN has not been established.
Neil J. Ganem, S. Godinho, D. Pellman
semanticscholar   +1 more source

Chromosomal instability in Streptomyces avermitilis: major deletion in the central region and stable circularized chromosome

open access: yesBMC Microbiology, 2010
Background The chromosome of Streptomyces has been shown to be unstable, frequently undergoing gross chromosomal rearrangements. However, the mechanisms underlying this phenomenon remain unclear, with previous studies focused on two chromosomal ends as ...
Wen Ying   +5 more
doaj   +1 more source

Evolutionary dynamics of insertion sequences in relation to the evolutionary histories of the chromosome and symbiotic plasmid genes of Rhizobium etli populations [PDF]

open access: yes, 2010
Insertion sequences (IS) are mobile genetic elements that are distributed in many prokaryotes. In particular, in the genomes of the symbiotic nitrogen-fixing bacteria collectively known as rhizobia, IS are fairly abundant in plasmids or chromosomal ...
Bustos, Patricia   +7 more
core   +2 more sources

Non-immune fetal hydrops: etiology and outcome according to gestational age at diagnosis. [PDF]

open access: yes, 2020
OBJECTIVE: Fetal hydrops is associated with increased perinatal morbidity and mortality. The etiology and outcome of fetal hydrops may differ according to the gestational age at diagnosis.
A. Bhide   +12 more
core   +2 more sources

Smc5/6 coordinates formation and resolution of joint molecules with chromosome morphology to ensure meiotic divisions [PDF]

open access: yes, 2013
During meiosis, Structural Maintenance of Chromosome (SMC) complexes underpin two fundamental features of meiosis: homologous recombination and chromosome segregation.
A Chavez   +115 more
core   +3 more sources

Holocentric chromosomes

open access: yesPLOS Genetics, 2020
Holocentric chromosomes possess multiple kinetochores along their length rather than the single centromere typical of other chromosomes [1]. They have been described for the first time in cytogenetic experiments dating from 1935 and, since this first observation, the term holocentric chromosome has referred to chromosomes that: i.
Mauro Mandrioli, Gian Carlo Manicardi
openaire   +5 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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