Results 61 to 70 of about 23,521 (333)
A quality control mechanism coordinates meiotic prophase events to promote crossover assurance.
PLoS Genetics, 2014 Meiotic chromosome segregation relies on homologous chromosomes being linked by at least one crossover, the obligate crossover. Homolog pairing, synapsis and meiosis specific DNA repair mechanisms are required for crossovers but how they are coordinated ...
Alison J Deshong +3 more
doaj +1 more source
A Computational Approach to Estimating Nondisjunction Frequency in Saccharomyces cerevisiae. [PDF]
, 2016 Errors segregating homologous chromosomes during meiosis result in aneuploid gametes and are the largest contributing factor to birth defects and spontaneous abortions in humans.
Burgess, Sean M, Chu, Daniel B
core +3 more sources
Inhibitor analysis of synapsis by resolvase
Journal of Biological Chemistry, 1989 Previously, we isolated several inhibitors that block the site-specific recombination reaction mediated by the Tn3-encoded resolvase protein. One class of inhibitors blocks resolvase binding to the recombination (res) sitc, and a second class inhibits synapse formation between resolvase and two directly repeated res sites.
P M, Flanagan, M C, Finn, M A, Fennewald
openaire +2 more sources
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background Apolipoprotein ε4 (APOE ε4) is a potent genetic risk factor for Alzheimer's disease (AD). However, its role in cerebral small vessel disease (CSVD) remains unclear. Given the clinical and pathological similarities between CSVD and AD, this study aimed to investigate the associations of APOE ε4 gene dosage with cognitive function and
Tingru Jin +6 more
wiley +1 more source
Location and Identification on Chromosome 3B of Bread Wheat of Genes Affecting Chiasma Number
Plants, 2022 Understanding meiotic crossover (CO) variation in crops like bread wheat (Triticum aestivum L.) is necessary as COs are essential to create new, original and powerful combinations of genes for traits of agronomical interest.
Benoit Darrier +7 more
doaj +1 more source
Positive regulation of meiotic DNA double-strand break formation by activation of the DNA damage checkpoint kinase Mec1(ATR) [PDF]
, 2013 During meiosis, formation and repair of programmed DNA double-strand breaks (DSBs) create genetic exchange between homologous chromosomes-a process that is critical for reductional meiotic chromosome segregation and the production of genetically diverse ...
Allison, Rachal M +4 more
core +1 more source
Developmental, Neuroanatomical and Cellular Expression of Genes Causing Dystonia
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Dystonia is one of the most common movement disorders, with variants in multiple genes identified as causative. However, an understanding of which developmental stages, brain regions, and cell types are most relevant is crucial for developing relevant disease models and therapeutics.
Darren Cameron +5 more
wiley +1 more source
On the origin of trisomy 21 Down syndrome [PDF]
, 2008 Background: Down syndrome, characterized by an extra chromosome 21 is the most common genetic cause for congenital malformations and learning disability.
Hultén, Maj A. +6 more
core +2 more sources
Advanced Biology, EarlyView.The article explores the discovery of unusually large, ring‐shaped ESCRT protein structures formed by immune and stromal cells. It investigates their formation, composition, and potential roles in immune synapse formation. The findings challenge assumptions about their function in immunological synapses, suggesting an exclusive role in maintaining ...
Anthi Psoma +3 more
wiley +1 more source
Failure of homologous synapsis and sex-specific reproduction problems
Frontiers in Genetics, 2012 The prophase of meiosis I ensures the correct segregation of chromosomes to each daughter cell. This includes the pairing, synapsis and recombination of homologous chromosomes. A subset of chromosomal abnormalities, including translocation and inversion,
Hiroki eKurahashi +4 more
doaj +1 more source