trisomy
1 of 1noun/ˈtraɪsoʊmi/
Forms:trisomies
1
a genetic condition in which an individual has three copies of a chromosome instead of the usual two
- Down syndrome is caused by trisomy of chromosome 21.
- Prenatal testing can detect trisomy conditions such as trisomy 18 and trisomy 13.
- Trisomy often results in developmental and physical abnormalities.
- Genetic counseling is recommended for families affected by trisomy.
- Researchers are studying the effects of trisomy on cellular function and development.