meiosis in which there is a failure of paired homologous chromosomes to separate; results in an abnormal number of chromosomes in the daughter cells
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nondisjunction::noun | Spocien Dictionary
| Type | Words |
|---|---|
| Type of | meiosis, miosis, reduction division |
Examples of nondisjunction
nondisjunction
In nondisjunction, a chromosome may fail to separate during anaphase.
From the en.wikipedia.org
When the separation is not normal, it is called nondisjunction.
From the en.wikipedia.org
When nondisjunction occurs, the resulting eggs may carry too few or too many chromosomes, a state called aneuploidy.
From the theatlantic.com
Down syndrome, Turner Syndrome, and a number of other diseases result from nondisjunction of entire chromosomes.
From the en.wikipedia.org
Nondisjunction can occur in the meiosis I or meiosis II, phases of cellular reproduction, or during mitosis.
From the en.wikipedia.org
- Meiosis in which there is a failure of paired homologous chromosomes to separate; results in an abnormal number of chromosomes in the daughter cells
- An error in cell division where the chromosomes fail to disjoin, so that both pass to the same daughter cell.
- Where the chromosome pairs fail to separate correctly in meiosis, resulting in sperm or egg cells which have missing or extra chromosomes eg. ...
- An error in meiosis or mitosis, in which both members of a pair of homologous chromosomes or both sister chromatids fail to move apart properly.
- A condition in which chromosomes in a pair fail to separate during the process of cell division. When this occurs during the making of an egg or sperm cell, it can result in an egg or sperm with one too few or one too many chromosomes. ...
- When homologous chromosomes fail to segregate properly during meiosis. Down syndrome, Turner syndrome and Klinefelter syndrome result from non-disjunction.
