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Monosomy

**Monosomy**
*Classification & external resources*
ICD-10	Q93., Q96.
MeSH	D009006

Monosomy is a form of aneuploidy with the presence of only one chromosome (instead of the typical two in humans) from a pair.^[1] Partial monosomy occurs when only a portion of the chromosome has one copy, while the rest has two copies.

Human monosomy

Additional recommended knowledge

What is the Correct Way to Check Repeatability in Balances?

How to ensure accurate weighing results every day?

How to quickly check pipettes?

Human conditions due to monosomy:

Turner syndrome - Women with Turner syndrome typically have one X chromosome instead of the usual two. Turner syndrome is the only full monosomy that is seen in humans.
Cri du chat syndrome -- (French for "cry of the cat" after the distinctive noise by affected persons' malformed larynx) a partial monosomy caused by a deletion of the end of the short p (from the word petit, French for small) arm of chromosome 5
1p36 Deletion Syndrome -- a partial monosomy caused by a deletion at the end of the short p arm of chromosome 1

References

^ CRC - Glossary M. Retrieved on 2007-12-23.

v • d • e Pathology: chromosome abnormalities (Q90-Q99, 758)
Autosomal trisomies	Down syndrome (21), Edwards syndrome (18), Patau syndrome (13), Trisomy 9, Warkany syndrome 2 (8), Cat eye syndrome (22)
Autosomal monosomies/deletions	Wolf-Hirschhorn syndrome (4), Cri du chat (5), Angelman syndrome/Prader-Willi syndrome (15), Miller-Dieker syndrome/Smith-Magenis syndrome (17), 22q11.2 deletion syndrome (22)
X/Y linked	Monosomy: Turner syndrome (XO) Trisomy: Triple X syndrome (XXX), Klinefelter's syndrome (XXY), XYY
Translocations	Philadelphia chromosome, Burkitt's lymphoma
Other	Fragile X syndrome, Gonadal dysgenesis (Mixed gonadal dysgenesis)