Results 41 to 50 of about 1,031,466 (338)

Chromosome Structure: Coiling up chromosomes [PDF]

open access: yesCurrent Biology, 1995
The mechanism by which eukaryotic chromosomes condense as cells enter mitosis has long been inaccessible to molecular biologists. An important clue has now been provided by a ubiquitous protein family, the SMCs.
openaire   +3 more sources

Cytogenetic findings in patients with intellectual disability and/or multiple congenital anomalies [PDF]

open access: yesJournal of Analytical Research in Clinical Medicine, 2016
Introduction: Chromosomal abnormalities are a major etiology of intellectual disability (ID) and multiple congenital anomalies (MCAs). Screening for chromosomal aberrations by clinical diagnostic techniques has been primarily performed ...
Sima Derakhshan, Mahmoud Khaniani
doaj   +1 more source

Rare chromosomal abnormalities: Can they be identified using conventional first trimester combined screening methods?

open access: yesEuropean Journal of Obstetrics & Gynecology and Reproductive Biology: X, 2021
Objective: To evaluate the performance of first trimester combined screening for the detection of rare chromosomal abnormalities, other than Trisomies 21, 18 or 13 or 45 × . Study design: A database containing 36,254 pregnancies was analyzed.
Daniel Kane   +2 more
doaj   +1 more source

Whole genome sequencing and microsatellite analysis of the Plasmodium falciparum E5 NF54 strain show that the var, rifin and stevor gene families follow Mendelian inheritance [PDF]

open access: yes, 2018
Background: Plasmodium falciparum exhibits a high degree of inter-isolate genetic diversity in its variant surface antigen (VSA) families: P. falciparum erythrocyte membrane protein 1, repetitive interspersed family (RIFIN) and subtelomeric variable ...
Bruske, Ellen   +2 more
core   +5 more sources

The chromosomes of the Filariae [PDF]

open access: yesFilaria Journal, 2005
An understanding of the nature of the chromosomes of the filariae is expected to greatly assist the future interpretation of genome data. Filarial development is not eutelic, and there does not seem to be a fixed number of cell divisions in the way that there is in Caenorhabditis.
Rory J. Post, Rory J. Post
openaire   +3 more sources

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

Identification of a Novel 81-kDa Component of the Xenopus Origin Recognition Complex [PDF]

open access: yes, 1998
The Xenopus origin recognition complex is essential for chromosomal DNA replication in cell-free extracts. We have immunopurified the Xenopus origin recognition complex with anti-Xorc2 antibodies and analyzed its composition and properties.
Carpenter, Phillip B.   +1 more
core   +1 more source

Chromosome cohesion: A polymerase for chromosome bridges [PDF]

open access: yesCurrent Biology, 2000
How do cells ensure that sister chromatids produced during DNA replication stay connected with each other until their separation in anaphase? New insight is provided by the discovery of DNA polymerase kappa, which has been found to be required for building the connections between sister chromatids.
openaire   +3 more sources

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

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

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