GENETIC NONDISJUNCTION Meaning and
Definition
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Genetic nondisjunction is a term used in genetics to describe a specific type of chromosomal abnormality that occurs during cell division, resulting in an altered number of chromosomes in the resulting daughter cells. The process of nondisjunction occurs when chromosomes fail to separate properly during either meiosis I (the division that produces cells with half the usual chromosome number) or meiosis II (the division that produces gametes with a haploid chromosome number).
During nondisjunction, chromosomes that are supposed to separate and move to opposite poles of the cell do not separate correctly. This can lead to the production of cells with an abnormal number of chromosomes, either too many or too few. If these abnormal cells are involved in the formation of gametes, they can contribute to conditions known as aneuploidy, where an individual has an abnormal number of chromosomes in their cells.
Genetic nondisjunction can occur in any organism with chromosomes, including humans. It is responsible for a number of genetic disorders such as Down syndrome, Turner syndrome, and Klinefelter syndrome, among others. The severity of the resulting condition depends on the specific chromosomes involved and the number of copies present in the affected individual.
In summary, genetic nondisjunction is a chromosomal abnormality that occurs during cell division, leading to cells with an altered number of chromosomes. This can result in developmental disorders and genetic conditions in affected individuals.
Common Misspellings for GENETIC NONDISJUNCTION
- fenetic nondisjunction
- venetic nondisjunction
- benetic nondisjunction
- henetic nondisjunction
- yenetic nondisjunction
- tenetic nondisjunction
- gwnetic nondisjunction
- gsnetic nondisjunction
- gdnetic nondisjunction
- grnetic nondisjunction
- g4netic nondisjunction
- g3netic nondisjunction
- gebetic nondisjunction
- gemetic nondisjunction
- gejetic nondisjunction
- gehetic nondisjunction
- genwtic nondisjunction
- genstic nondisjunction
- gendtic nondisjunction
- genrtic nondisjunction
Etymology of GENETIC NONDISJUNCTION
The term "genetic nondisjunction" is composed of two words, "genetic" and "nondisjunction". - The word "genetic" is derived from the Latin word "geneticus", which in turn comes from the Greek word "genetikos", meaning "origin, source, or kind", and it is related to the Greek word "genesis", meaning "birth" or "origin". Thus, "genetic" refers to something related to genes, heredity, or inheritance.- The word "nondisjunction" is a combination of the prefix "non-", meaning "not" or "without", and the word "disjunction". "Disjunction" is derived from the Latin word "disjunctio", which means "separation" or "partition". In biological terms, "disjunction" refers to the separation or splitting of chromosomes or genetic material during cell division.
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