Chromosomal crossover, or crossing over, is the exchange of genetic material during sexual reproduction between two homologous chromosomes' non-sister chromatids that results in recombinant ...

(Note that a third model of recombination, synthesis-dependent strand annealing [SDSA], has also been proposed to account for the lack of crossover ... that homologous chromosomes reside in ...

According to the trio, distances greater than 50 map units on a chromosome diagram were never "intended to represent observed crossover values greater than 50." Instead, map distances between ...

In most cases, the chromosomes line up properly and crossover (left panel). The unequal crossover (right panel) occurs because of "selfish DNA" sequences known as transposons, represented here as ...

Construction and iterative redesign of synXVI a 903 kb synthetic Saccharomyces cerevisiae chromosome. Nature Communications , 2025; 16 (1) DOI: 10.1038/s41467-024-55318-3 Cite This Page : ...

where one crossover inhibits the formation of another crossover nearby along the same chromosome, was initially identified by fruit fly geneticist Hermann J. Muller in 1916. Despite researchers ...

We have previously shown that crossover sites become designated when the broken chromosome first interacts with its partner homolog (Börner et al., 2004). This indicates that crossover sites are ...

DSB repair can result in either reciprocal exchange of flanking chromosome arms (a crossover), or no exchange (a noncrossover). If there are sequence polymorphisms in the repair region, then formation ...