Skip to content
Show Advanced Search
Crossing Over, Genetic:
The reciprocal exchange of segments at corresponding positions along pairs of homologous Chromosomes by symmetrical breakage and crosswise rejoining forming cross-over sites (Holliday junctions) that are resolved during Chromosome segregation. Crossing-over typically occurs during Meiosis but it may also occur in the absence of meiosis, for example, with bacterial chromosomes, organelle chromosomes, or somatic cell nuclear chromosomes.
Get cutting-edge science videos from JoVE sent straight to your inbox every month.