nondisjunction

(redirected from Mitotic non-disjunction)
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Related to Mitotic non-disjunction: Meiotic nondisjunction

nondisjunction

[¦nän′dis‚jaŋk·shən]
(genetics)
Failure of homologous chromosomes to separate symmetrically during cell division, with both ending up in the same daughter cell instead of in each daughter cell.