Results 41 to 50 of about 34,736 (254)

How to halve ploidy : lessons from budding yeast meiosis [PDF]

open access: yes, 2012
Maintenance of ploidy in sexually reproducing organisms requires a specialized form of cell division called meiosis that generates genetically diverse haploid gametes from diploid germ cells.
Arumugam, Prakash   +2 more
core   +1 more source

Chiasmata promote monopolar attachment of sister chromatids and their co-segregation toward the proper pole during meiosis I. [PDF]

open access: yesPLoS Genetics, 2011
The chiasma is a structure that forms between a pair of homologous chromosomes by crossover recombination and physically links the homologous chromosomes during meiosis. Chiasmata are essential for the attachment of the homologous chromosomes to opposite
Yukinobu Hirose   +8 more
doaj   +1 more source

DNA methyltransferase-3-dependent nonrandom template segregation in differentiating embryonic stem cells. [PDF]

open access: yes, 2013
Asymmetry of cell fate is one fundamental property of stem cells, in which one daughter cell self-renews, whereas the other differentiates. Evidence of nonrandom template segregation (NRTS) of chromosomes during asymmetric cell divisions in ...
Chen, Robert   +6 more
core   +2 more sources

Pch2 prevents Mec1/Tel1-mediated Hop1 phosphorylation occurring independently of Red1 in budding yeast meiosis. [PDF]

open access: yesPLoS ONE, 2014
A prominent feature of meiosis in most sexually reproducing organisms is interhomolog recombination whereby a significant fraction of the programmed meiotic double-strand breaks are repaired using intact homologous non-sister chromatids rather than ...
Yu-Hui Lo   +2 more
doaj   +1 more source

Meiotic sex chromosome cohesion and autosomal synapsis are supported by Esco2.

open access: yes, 2020
In mitotic cells, establishment of sister chromatid cohesion requires acetylation of the cohesin subunit SMC3 (acSMC3) by ESCO1 and/or ESCO2. Meiotic cohesin plays additional but poorly understood roles in the formation of chromosome axial elements (AEs)
Biswas, U.   +6 more
core   +1 more source

Dysfunctional telomeres in primary cells from Fanconi anemia FANCD2 patients [PDF]

open access: yes, 2012
© 2012 Joksic et al. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium ...
Guc-Scekic, M   +11 more
core   +3 more sources

Recent advances in cohesin biology [version 1; referees: 4 approved]

open access: yesF1000Research, 2016
Sister chromatids are tethered together from the time they are formed in S-phase until they separate at anaphase. A protein complex called cohesin is responsible for holding the sister chromatids together and serves important roles in chromosome ...
Susannah Rankin, Dean S. Dawson
doaj   +1 more source

A Computational Approach to Estimating Nondisjunction Frequency in Saccharomyces cerevisiae. [PDF]

open access: yes, 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

Recent advances in understanding the role of Cdk1 in the Spindle Assembly Checkpoint [version 1; peer review: 2 approved]

open access: yesF1000Research, 2020
The goal of mitosis is to form two daughter cells each containing one copy of each mother cell chromosome, replicated in the previous S phase. To achieve this, sister chromatids held together back-to-back at their primary constriction, the centromere ...
Angela Flavia Serpico, Domenico Grieco
doaj   +1 more source

HIM-10 is required for kinetochore structure and function on Caenorhabditis elegans holocentric chromosomes. [PDF]

open access: yes, 2001
Macromolecular structures called kinetochores attach and move chromosomes within the spindle during chromosome segregation. Using electron microscopy, we identified a structure on the holocentric mitotic and meiotic chromosomes of Caenorhabditis elegans ...
Albertson   +33 more
core   +2 more sources

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