crossing over /cross·ing over/ (kros´ing o´ver) the exchanging of material between homologous chromosomes during the first meiotic division, resulting in new combinations of genes.
crossing over,
crossing over
cross·ing o·ver or cross·ing-o·ver (krô s ng-  v r)n. The exchange of genetic material between homologous chromosomes that occurs during meiosis and contributes to genetic variability. |
crossing over,
the exchange of sections of chromatids between homologous pairs of chromosomes during the prophase stage of the first meiotic division. Crossing over occurs through the formation of chiasmata and results in the recombination of genes. Also called chiasmatypy.
crossing over
the exchanging of material between homologous chromosomes, during the first meiotic division, resulting in new combinations of genes.
crossing over
Recombination Vox populi A popular phrase for a change in a person's sexual preference, usually heterosexual → homosexual
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