MeSH definition : The failure of homologous CHROMOSOMES or CHROMATIDS to segregate during MITOSIS or
MEIOSIS with the result that one daughter cell has both of a pair of parental chromosomes
or chromatids and the other has none.;
The failure of homologous CHROMOSOMES or CHROMATIDS to segregate during MITOSIS or
MEIOSIS with the result that one daughter cell has both of a pair of parental chromosomes
or chromatids and the other has none.