It is thought that these proteins play a role in preventing recombination during DNA replication when it is not needed. An alternate hypothesis proposes that homologous chromosomes reside in pairs ...

Aberrant segregation was first clearly noted in the 1950s in genetic studies of certain fungi that allow direct examination of their four haploid products of meiosis. Normally in these fungi, a ...

Oribatid mites, minuscule soil-dwelling creatures, have been decomposing organic matter for millions of years. With over ...

Recombination between 2 different chromosomes has the potential to alter the genetic information in a cell. For example, when homologs recombine, loss of heterozygosity (LOH) can result, in which ...

Unlike its DNA repair role in somatic cells, homologous recombination has a distinct role in meiosis in ensuring proper chromosome segregation. In yeast, an early step of the meiotic program is the ...

so it does not have the opportunity to go through genetic recombination, or the "shuffling of genes that occurs in each generation which helps to eliminate damaging gene mutations," Darren Kent ...

A high-quality genome assembly of Silene latifolia was generated by researchers at CNRS/Université Claude Bernard Lyon 1 and collaborating institutions. The team identified extensive recombination ...

One of the key stages in the evolution of different sex chromosomes is a loss of recombination—the exchange of DNA during meiosis—that is both an important mechanism for maintaining genetic diversity ...

It is one of the final phases of genetic recombination, which occurs in the pachytene stage of prophase I of meiosis during a process called synapsis. Synapsis begins before the synaptonemal complex ...

Researchers led by Prof. TONG Minghan from the Center for Excellence in Molecular Cell Science of the Chinese Academy of Sciences, collaborating with Prof. HUANG Ying from Xinhua Hospital, Shanghai ...