Chromosomal crossover
= Chromosomal crossover
{wiki}
= Crossing over
{synonym}
A chromosomal crossover is a reciprocal exchange of segments between nonsister <chromatids> of <homologous chromosomes> during <meiosis>. It can change the <haplotypes> inherited at selected <genetic loci>; whether it does so depends on the transmitted <chromatid> and interval.