Results 11 to 20 of about 1,598,920 (365)
Chromosome Oscillations in Mitosis [PDF]
Successful cell division requires a tight regulation of chromosome motion via the activity of molecular motors. Many of the key players at the origin of the forces generating the movement have been identified, but their spatial and temporal organization remains elusive.
A. P. Joglekar+8 more
arxiv +3 more sources
In RNA-mediated interference (RNAi), double-stranded RNAs (dsRNAs) target complementary mRNAs for degradation. New work demonstrates that essential chromosomal functions are mediated through RNAi protein components and short RNAs, which alter chromosome function at specific DNA loci via histone modification.
Abby F. Dernburg, Gary H. Karpen
openaire +2 more sources
The megabase-scale crossover landscape is largely independent of sequence divergence
The frequency of recombination varies along chromosomes and highly correlates with sequence divergence. Here, the authors show that polymorphisms are not a major determinant of the megabase-scale recombination landscape in Arabidopsis, which is rather ...
Qichao Lian+6 more
doaj +1 more source
Holocentric chromosomes possess multiple kinetochores along their length rather than the single centromere typical of other chromosomes [1]. They have been described for the first time in cytogenetic experiments dating from 1935 and, since this first observation, the term holocentric chromosome has referred to chromosomes that: i.
Mauro Mandrioli, Gian Carlo Manicardi
openaire +6 more sources
Dystrophin maintains membrane integrity as a sarcolemmal protein. Dystrophin mutations lead to Duchenne muscular dystrophy, an X-linked recessive disorder.
Yosuke Hiramuki+14 more
doaj +1 more source
Architecture of metaphase chromosomes and chromosome scaffolds. [PDF]
We have developed procedures for depositing intact mitotic chromosomes and isolated residual scaffolds on electron microscope grids at controlled and reproducible levels of compaction. The chromosomes were isolated using a recently developed aqueous method. Our study has addressed two different aspects of chromosome structure.
Earnshaw, William C.+1 more
openaire +4 more sources
International ...
Fachinetti, Daniele+2 more
openaire +4 more sources
The architecture of chicken chromosome territories changes during differentiation [PDF]
BACKGROUND: Between cell divisions the chromatin fiber of each chromosome is restricted to a subvolume of the interphase cell nucleus called chromosome territory.
Bonifer, C.+7 more
core +4 more sources
Chromosomal rearrangements in cattle and pigs revealed by chromosome microdissection and chromosome painting [PDF]
A pericentric inversion of chromosome 4 in a boar, as well as a case of (2q-;5p+) translocation mosaicism in a bull were analysed by chromosome painting using probes generated by conventional microdissection. For the porcine inversion, probes specific for p arms and q arms were produced and hybridised simultaneously on metaphases of a heterozygote ...
Pinton, Alain+2 more
openaire +10 more sources
Dynamic epigenetic states of maize centromeres
The centromere is a specialized chromosomal region identified as the major constriction, upon which the kinetochore complex is formed, ensuring accurate chromosome orientation and segregation during cell division.
Yalin eLiu+5 more
doaj +1 more source