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Monosomy. Schematic karyogram of a human, showing the normal diploid karyotype. It shows annotated bands and sub-bands as used for the nomenclature of chromosome abnormalities including partial monosomies. It shows 22 homologous chromosomes, both the female (XX) and male (XY) versions of the sex chromosome (bottom right), as well as the ...
18p-. 18p-, also known as monosomy 18p, deletion 18p syndrome, del (18p) syndrome, partial monosomy 18p, or de Grouchy syndrome 1, is a genetic condition caused by a deletion of all or part of the short arm (the p arm) of chromosome 18. It occurs in about 1 of every 50,000 births. [ 1 ]
Partial monosomy of chromosome 13qis a monosomythat results from the loss of all or part of the long arm of chromosome 13in human beings. It is a rare genetic disorder which results in severe congenital abnormalities which are frequently fatal at an early age. Up until 2003, more than 125 cases had been documented in medical literature.
The terms "partial monosomy" and "partial trisomy" are used to describe an imbalance of genetic material caused by loss or gain of part of a chromosome. In particular, these terms would be used in the situation of an unbalanced translocation , where an individual carries a derivative chromosome formed through the breakage and fusion of two ...
13q deletion syndrome is a rare genetic disease caused by the deletion of some or all of the large arm of human chromosome 13. Depending upon the size and location of the deletion on chromosome 13, the physical and mental manifestations will vary. It has the potential to cause intellectual disability and congenital malformations that affect a ...
Henry Turner. Turner syndrome (TS), also known as 45,X, or 45,X0, is a genetic disorder in which a females cells have only one X chromosome or are partially missing an X chromosome (sex chromosome monosomy) leading to the complete or partial deletion of the pseudoautosomal regions (PAR1, PAR2) in the affected X chromosome. [ 2 ][ 6 ][ 7 ] Most ...
Cri du chat syndrome is due to a partial deletion of the short arm of chromosome number 5, also called "5p monosomy " or "partial monosomy." Approximately 90% of cases result from a sporadic, or randomly occurring, de novo deletion. The remaining 10–15% are due to unequal segregation of a parental balanced translocation where the 5p monosomy ...
Other chromosomal conditions: Partial monosomy 13q is a rare chromosomal disorder that results when a piece of the long arm (q) of chromosome 13 is missing (monosomic). Infants born with partial monosomy 13q may exhibit low birth weight, malformations of the head and face (craniofacial region), skeletal abnormalities (especially of the hands ...