Results 131 to 140 of about 1,000,594 (265)

Limited Lifespan of Fragile Regions in Mammalian Evolution

open access: yes, 2010
An important question in genome evolution is whether there exist fragile regions (rearrangement hotspots) where chromosomal rearrangements are happening over and over again. Although nearly all recent studies supported the existence of fragile regions in
A. Bergeron   +44 more
core   +3 more sources

Retrospective study revealed integration of CNV-seq and karyotype analysis is an effective strategy for prenatal diagnosis of chromosomal abnormalities

open access: yesFrontiers in Genetics
Fetal chromosomal abnormalities are the main cause of adverse pregnancy outcomes and are the focus of invasive prenatal diagnosis. Recent studies have demonstrated that various techniques have distinct advantages.
Yunsheng Ge   +8 more
doaj   +1 more source

Active dynamics and spatially coherent motion in chromosomes subject to enzymatic force dipoles

open access: yes, 2018
Inspired by recent experiments on chromosomal dynamics, we introduce an exactly solvable model for the interaction between a flexible polymer and a set of motor-like enzymes. The enzymes can bind and unbind to specific sites of the polymer and when bound
Put, Stefanie   +2 more
core   +1 more source

Loss of redundant gene expression after polyploidization in plants

open access: yes, 1978
Based on chromosomal location data of genes encoding 28 biochemical systems in allohexaploid wheat,Triticum aestivum L. (genomes AABBDD), it is concluded that the proportions of systems controlled by triplicate, duplicate, and single loci are 57%, 25 ...
C. Aragoncillo   +20 more
core   +1 more source

Motorized Chromosome Models of Mitosis [PDF]

open access: yesarXiv
During mitosis, near-spherical chromosomes reconfigure into rod-like structures to ensure their accurate segregation to daughter cells. We explore here, the interplay between the nonequilibrium activity of molecular motors in determining the chromosomal organization in mitosis and its characteristic symmetry-breaking events.
arxiv  

Cytogenetic Investigation in Couples with Recurrent Abortion and Poor Obstetric History

open access: yesGynecology Obstetrics & Reproductive Medicine, 2010
OBJECTIVES: The cause of recurrent early pregnancy wastage is often unknown. Cytogenetic studies have an important role in the evaluation of couples with repeated miscarriages and poor obstetric history.
Ebru Önalan Etem   +5 more
doaj  

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