Lexic.us

Definition of Nondisjunction

1. Noun. Meiosis in which there is a failure of paired homologous chromosomes to separate; results in an abnormal number of chromosomes in the daughter cells.

Definition of Nondisjunction

1. Noun. (genetics) The failure of chromosome pairs to separate properly during meiosis ¹

¹ Source: wiktionary.com

Definition of Nondisjunction

1. [n -S]

Medical Definition of Nondisjunction

1. Failure of homologous chromosomes or sister chromatids to separate or segregate at meiosis or mitosis respectively. It results in aneuploid cells, where the daughter cell has two chromosomes or two chromatids and the other has none. Nondisjunction of the X chromosome in Drosophila confirmed the theory of chromosomal inheritance. (17 Jul 2002)

Lexicographical Neighbors of Nondisjunction

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