crossing over

noun

Genetics.

1. the interchange of corresponding chromatid segments of homologous chromosomes with their linked genes.

crossing over

noun

1. biology the interchange of sections between pairing homologous chromosomes during the diplotene stage of meiosis. It results in the rearrangement of genes and produces variation in the inherited characteristics of the offspring See also linkage

crossing over

1. The exchange of genetic material between homologous chromosomes that occurs during meiosis and contributes to genetic variability.

Word History and Origins

Origin of crossing over¹

First recorded in 1910–15

Example Sentences

But that was followed by a long stretch in limbo, with albums and tours that were devoured by hardcore fans, without crossing over to the mainstream.

From BBC

The affair only lasted a year, but was later immortalised by the Kinks in the song Waterloo Sunset: with a line referencing Terry and Julie crossing over the river.

From BBC

The girl had been travelling with her sister, who survived the late-night crossing over the vast lake, where winds can be powerful.

From BBC

“She hated the idea of that Hollywood enchantment crossing over into political discourse,” explains Wilkinson.

From Los Angeles Times

Tellingly some Congolese army soldiers in Goma who surrendered on Monday, did so by crossing over the border into Rwanda.

From BBC