Results 91 to 100 of about 1,598,920 (365)
Resolving the degree of order in the bacterial chromosome using a statistical physics approach [PDF]
arXiv, 2020 While bacterial chromosomes were long thought to be amorphous, recent experiments reveal pronounced organizational features. However, the extent of bacterial chromosome organization remains unclear. Here, we develop a fully data-driven maximum entropy approach to extract the distribution of single-cell chromosome conformations from experimental ...
arxiv
Why Y chromosome is shorter and women live longer? [PDF]
Eur. Phys. J. B 65, 149-153 (2008), 2008 We have used the Penna ageing model to analyze how the differences in evolution of sex chromosomes depend on the strategy of reproduction. In panmictic populations, when females (XX) can freely choose the male partner (XY) for reproduction from the whole population, the Y chromosome accumulates defects and eventually the only information it brings is a
arxiv +1 more source
Chromosome breakage after G2 checkpoint release [PDF]
, 2006 DNA double-strand break (DSB) repair and checkpoint control represent distinct mechanisms to reduce chromosomal instability. Ataxia telangiectasia (A-T) cells have checkpoint arrest and DSB repair defects. We examine the efficiency and interplay of ATM's
Beucher, Andrea +8 more
core +4 more sources
Molecular Oncology, EarlyView.Urine is a rich source of biomarkers for cancer detection. Tumor‐derived material is released into the bloodstream and transported to the urine. Urine can easily be collected from individuals, allowing non‐invasive cancer detection. This review discusses the rationale behind urine‐based cancer detection and its potential for cancer diagnostics ...
Birgit M. M. Wever +1 more
wiley +1 more source
The Transmembrane Protein Semi1 Positions Gamete Nuclei for Reciprocal Fertilization in Tetrahymena
iScience, 2020 Summary: During sexual reproduction in the ciliate, Tetrahymena thermophila, cells of complementary mating type pair (“conjugate”) undergo simultaneous meiosis and fertilize each other.
Takahiko Akematsu +4 more
doaj
Pharmacology Research & Perspectives, 2022 UDP‐glucuronosyltransferases (UGTs) catalyze the conjugation of various substrates with sugars. Since the UGT2 family forms a large cluster spanning 1.5 Mb, transgenic mouse lines carrying the entire human UGT2 family have not been constructed because of
Kaoru Kobayashi +9 more
doaj +1 more source
Improving the Search by Encoding Multiple Solutions in a Chromosome [PDF]
Evolutionary Machine Design, Nova Science Publisher, New-York,
edited by Nadia Nedjah (et al.), pp. 81-107, 2004, 2021 We investigate the possibility of encoding multiple solutions of a problem in a single chromosome. The best solution encoded in an individual will represent (will provide the fitness of) that individual. In order to obtain some benefits the chromosome decoding process must have the same complexity as in the case of a single solution in a chromosome ...
arxiv
Detection of complete and partial chromosome gains and losses by comparative genomic in situ hybridization [PDF]
, 1993 Comparative genomic in situ hybridization (CGH) provides a new possibility for searching genomes for imbalanced genetic material. Labeled genomic test DNA, prepared from clinical or tumor specimens, is mixed with differently labeled control DNA prepared ...
Cremer, Thomas +9 more
core +1 more source
Molecular Oncology, EarlyView.Circulating tumor DNA (ctDNA) offers a possibility for different applications in early and late stage breast cancer management. In early breast cancer tumor informed approaches are increasingly used for detecting molecular residual disease (MRD) and early recurrence. In advanced stage, ctDNA provides a possibility for monitoring disease progression and
Eva Valentina Klocker +14 more
wiley +1 more source
Chromosomal Structural Abnormality Diagnosis by Homologous Similarity [PDF]
Pathogenic chromosome abnormalities are very common among the general population. While numerical chromosome abnormalities can be quickly and precisely detected, structural chromosome abnormalities are far more complex and typically require considerable efforts by human experts for identification.
arxiv +1 more source