Dictionary

crossing–over

noun cross·ing–over \ˌkr-siŋ-ˈō-vər\

Definition of CROSSING-OVER

:  an interchange of genes or segments between homologous chromosomes
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First Known Use of CROSSING-OVER

1912
Medical Dictionary

crossing–over

noun cross·ing–over \ˌkr-siŋ-ˈō-vər\

Medical Definition of CROSSING–OVER

:  an interchange of genes or segments between homologous chromosomes

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