Tetrasomy
| Tetrasomy | |
|---|---|
| Specialty | Medical genetics |
A tetrasomy is a form of aneuploidy with the presence of four copies, instead of the normal two, of a particular chromosome.
Causes
Full
Full tetrasomy of an individual occurs due to
chromosomes
instead of the typical 46.
Autosomal tetrasomies
- Cat eye syndrome where partial tetrasomy of chromosome 22 is present
- Pallister-Killian syndrome(tetrasomy 12p)
- Tetrasomy 9p
- Tetrasomy 18p
- Tetrasomy 21, a rare form of Down syndrome