nondisjunction

• Substantif désignant l'échec de la séparation des chromosomes homologues ou des chromatides sœurs lors de la division cellulaire, conduisant à la formation de cellules filles avec un nombre anormal de chromosomes.

A noun referring to the failure of homologous chromosomes or sister chromatids to separate properly during cell division, resulting in daughter cells with an abnormal number of chromosomes.

1. Chromosomal separation failureC2formalscientific

   The failure of homologous chromosomes or sister chromatids to separate properly during cell division, resulting in an abnormal number of chromosomes in the daughter cells.

   Non-disjonction chromosomique

   • Nondisjunction during meiosis can lead to conditions like Down syndrome.
   • The scientist explained how nondisjunction causes aneuploidy.
   • Errors in cell division such as nondisjunction are studied in genetics.