Results 51 to 60 of about 1,161,690 (369)
Mouse HFM1/Mer3 is required for crossover formation and complete synapsis of homologous chromosomes during meiosis. [PDF]
Faithful chromosome segregation during meiosis requires that homologous chromosomes associate and recombine. Chiasmata, the cytological manifestation of recombination, provide the physical link that holds the homologs together as a pair, facilitating ...
Michel F Guiraldelli +4 more
doaj +1 more source
PAR-TERRA directs homologous sex chromosome pairing
In mammals, homologous chromosomes rarely pair outside meiosis. One exception is the X chromosome, which transiently pairs during X-chromosome inactivation (XCI). How two chromosomes find each other in 3D space is not known.
H. Chu +7 more
semanticscholar +1 more source
Association of homologous chromosomes during floral development [PDF]
Reduction in chromosome number and genetic recombination during meiosis require the prior association of homologous chromosomes, and this has been assumed to be a central event in meiosis. Various studies have suggested, however, that while the reduction division of meiosis is a universally conserved process, the pre-meiotic association of homologues ...
Aragón-Alcaide, Luis +5 more
openaire +2 more sources
Oocyte-specific deletion of Cdc42 has little effect on meiotic spindle organization and migration to the cortex but inhibits polar body emission, although homologous chromosome segregation occurs.
Zhenbo Wang +11 more
semanticscholar +1 more source
Phylogenetic inferences of Atelinae (Platyrrhini) based on multi-directional chromosome painting in Brachyteles arachnoides, Ateles paniscus paniscus and Ateles b. marginatus [PDF]
We performed multi-directional chromosome painting in a comparative cytogenetic study of the three Atelinae species Brachyteles arachnoides, Ateles paniscus paniscus and Ateles belzebuth marginatus, in order to reconstruct phylogenetic relationships ...
C. Nagamachi +17 more
core +1 more source
Genetic Requirements for Intra-Chromosomal Deletions [PDF]
Chromosomal deletions are one of the most dangerous types of DNA damage and often arise as a result of inappropriately repaired DNA double strand breaks (DSB).
McPherson, Matthew
core
During meiosis, pairing of homologous chromosomes (homologs) ensures the formation of haploid gametes from diploid precursor cells, a prerequisite for sexual reproduction.
Ariana Chriss +2 more
doaj +1 more source
Extensive DNA end processing by exo1 and sgs1 inhibits break-induced replication.
Homology-dependent repair of DNA double-strand breaks (DSBs) by gene conversion involves short tracts of DNA synthesis and limited loss of heterozygosity (LOH).
Vanessa A Marrero, Lorraine S Symington
doaj +1 more source
The origin of human chromosome 2 analyzed by comparative chromosome mapping with a DNA microlibrary [PDF]
Fluorescencein situ hybridization (FISH) of microlibraries established from distinct chromosome subregions can test the evolutionary conservation of chromosome bands as well as chromosomal rearrangements that occurred during primate evolution and will ...
A Baldini +32 more
core +1 more source
Optimal Haplotype Assembly from High-Throughput Mate-Pair Reads
Humans have $23$ pairs of homologous chromosomes. The homologous pairs are almost identical pairs of chromosomes. For the most part, differences in homologous chromosome occur at certain documented positions called single nucleotide polymorphisms (SNPs).
Kamath, Govinda M. +2 more
core +1 more source

