<P> Non-sister chromatids , on the other hand , refers to either of the two chromatids of paired homologous chromosomes , that is , the pairing of a paternal chromosome and a maternal chromosome . In chromosomal crossovers , non-sister ( homologous ) chromatids form chiasmata to exchange genetic material during the prophase I of meiosis ( See Homologous recombination ) . </P>
<P> Non-sister chromatids , on the other hand , refers to either of the two chromatids of paired homologous chromosomes , that is , the pairing of a paternal chromosome and a maternal chromosome . In chromosomal crossovers , non-sister ( homologous ) chromatids form chiasmata to exchange genetic material during the prophase I of meiosis ( See Homologous recombination ) . </P>
the exchange of chromosome parts between non-sister chromatids may occur during
the exchange of chromosome parts between non-sister chromatids may occur during
prophase I of meiosis
prophase I of meiosis