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

/ krô′sĭng-ō′vər /

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

There have been about 10 million encounters with migrants crossing over the US border since January 2021.

From BBC

Poland has faced a surge in illegal migrant crossings over its border with Belarus since 2021 which it considers part of a "hybrid war" waged by both Belarus and Russia.

From BBC

"It's a lot of like crossing over from rap and hip-hop culture and less like the classic garage MC," he tells Newsbeat.

From BBC

Starting in 1978, Ms. Bofill logged six albums in the Top 40 of the Billboard R&B charts, with five of them crossing over to the Top 100 of the pop charts.

From New York Times

The emitters create 3D acoustic vortex fields that can pass through barriers such as bone and tissue, crossing over one another to form tiny ring-shaped acoustic traps.

From Science Daily