crossing over


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

Origin of crossing over

1
First recorded in 1910–15

Words Nearby crossing over

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How to use crossing over in a sentence

British Dictionary definitions for crossing over

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 (def. 4)

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for crossing over

crossing over

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

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