Recombination may also occur during mitosis in eukaryotes where it ordinarily involves the two sister chromosomes formed after chromosomal replication. In this case, new combinations of alleles are not produced since the sister chromosomes are usually identical. In meiosis and mitosis, recombination occurs between similar molecules of DNA (homologous sequences). In meiosis, non-sister homologous chromosomes pair with each other so that recombination characteristically occurs between non-sister homologues. In both meiotic and mitotic cells, recombination between homologous chromosomes is a common mechanism used in DNA repair.
recombination may also occur during mitosis in eukaryotes where it ordinarily involves the two sister chromosomes formed after chromosomal replication in this case new combinations of alleles are not produced since the sister chromosomes are usually identical in meiosis and mitosis recombination occurs between similar molecules of dna (homologous sequences) in meiosis non-sister homologous chromosomes pair with each other so that recombination characteristically occurs between non-sister homologues in both meiotic and mitotic cells recombination between homologous chromosomes is a common mechanism used in dna repair