Results 51 to 60 of about 1,033,685 (362)

Chromosome segregation analysis in human embryos obtained from couples involving male carriers of reciprocal or Robertsonian translocation. [PDF]

open access: yesPLoS ONE, 2012
The objective of this study was to investigate the frequency and type of chromosome segregation patterns in cleavage stage embryos obtained from male carriers of Robertsonian (ROB) and reciprocal (REC) translocations undergoing preimplantation genetic ...
Ahmet Yilmaz   +5 more
doaj   +1 more source

Recombination and chromosome segregation

open access: yesPhilosophical Transactions of the Royal Society of London. Series B: Biological Sciences, 2004
The duplication of DNA and faithful segregation of newly replicated chromosomes at cell division is frequently dependent on recombinational processes. The rebuilding of broken or stalled replication forks is universally dependent on homologous recombination proteins.
Sherratt, D   +6 more
openaire   +3 more sources

A simple biophysical model emulates budding yeast chromosome condensation

open access: yeseLife, 2015
Mitotic chromosomes were one of the first cell biological structures to be described, yet their molecular architecture remains poorly understood. We have devised a simple biophysical model of a 300 kb-long nucleosome chain, the size of a budding yeast ...
Tammy MK Cheng   +8 more
doaj   +1 more source

Segregation but Not Replication of the Pseudomonas aeruginosa Chromosome Terminates at Dif

open access: yesmBio, 2018
Coordination between chromosome replication and segregation is essential for equal partitioning of genetic material between daughter cells. In bacteria, this is achieved through the proximity of the origin of replication, oriC, and the chromosome ...
Bijit K. Bhowmik   +3 more
doaj   +1 more source

Autism and mild epilepsy associated with a de novo missense pathogenic variant in the GTPase effector domain of DNM1

open access: yesAmerican Journal of Medical Genetics Part C: Seminars in Medical Genetics, EarlyView., 2023
Abstract Dynamin 1 is a GTPase protein involved in synaptic vesicle fission, which facilitates the exocytosis of neurotransmitters necessary for normal signaling. Pathogenic variants in the DNM1 gene are associated with intractable epilepsy, often manifested as infantile spasms at onset, developmental delay, and a movement disorder, and are located in ...
Davide Mei   +4 more
wiley   +1 more source

Super-Resolution Mapping of Neuronal Circuitry With an Index-Optimized Clearing Agent

open access: yesCell Reports, 2016
Super-resolution imaging deep inside tissues has been challenging, as it is extremely sensitive to light scattering and spherical aberrations. Here, we report an optimized optical clearing agent for high-resolution fluorescence imaging (SeeDB2).
Meng-Tsen Ke   +7 more
doaj   +1 more source

The Consequences of Chromosome Segregation Errors in Mitosis and Meiosis

open access: yesBiology, 2017
Mistakes during cell division frequently generate changes in chromosome content, producing aneuploid or polyploid progeny cells. Polyploid cells may then undergo abnormal division to generate aneuploid cells.
T. Potapova, G. Gorbsky
semanticscholar   +1 more source

A surge of late-occurring meiotic double-strand breaks rescues synapsis abnormalities in spermatocytes of mice with hypomorphic expression of SPO11 [PDF]

open access: yes, 2015
Meiosis is the biological process that, after a cycle of DNA replication, halves the cellular chromosome complement, leading to the formation of haploid gametes.
Barchi, Marco   +9 more
core   +3 more sources

Recombining your way out of trouble: the genetic architecture of hybrid fitness under environmental stress [PDF]

open access: yes, 2020
Hybridization between species is a fundamental evolutionary force that can both promote and delay adaptation. There is a deficit in our understanding of the genetic basis of hybrid fitness, especially in non-domesticated organisms.
Bendixsen, D.   +5 more
core   +1 more source

Spo0J and SMC are required for normal chromosome segregation in Staphylococcus aureus

open access: yesMicrobiologyOpen, 2020
Bacterial chromosome segregation is an essential cellular process that is particularly elusive in spherical bacteria such as the opportunistic human pathogen Staphylococcus aureus.
Helena Chan   +2 more
doaj   +1 more source

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