Patau syndrome

（重定向自Trisomy 13）

Patau syndrome /ˈpætaʊ/ is a syndrome caused by a chromosomal abnormality, in which some or all of the cells of the body contain extra genetic material from chromosome 13. This can occur either because each cell contains a full extra copy of chromosome 13 (a disorder known as trisomy 13 or trisomy D), or because each cell contains an extra partial copy of the chromosome (i.e., Robertsonian translocation) or because of mosaic Patau syndrome. Full trisomy 13 is caused by nondisjunction of chromosomes during meiosis (the mosaic form is caused by nondisjunction during mitosis). The extra genetic material from chromosome 13 disrupts the normal course of development, causing multiple and complex organ defects. Like all nondisjunction conditions (such as Down syndrome and Edwards syndrome), the risk of this syndrome in the offspring increases with maternal age at pregnancy, with about 31 years being the average. Patau syndrome affects somewhere between 1 in 10,000 and 1 in 21,700 live births.

单词	Trisomy 13
释义	Trisomy 13 英语例句库 A case of trisomy 22 liveborn female baby with multiple congenital anomalies is described. 摘要作者报告一例具有多种先天性异常的三染色体22症的活产女婴。 So this fetus presented seeral signs of trisomy 21, including the hypoplasia of the nasal bone, hypodontia, micrognathia, and hypospadias. 这样，本例胎儿显示21三体的若干征象：包括鼻骨发育不全、牙发育不全、小颌和尿道下裂。 Polysomy, which includes trisomy, is the condition in which one or more chromosomes are represented more than twice in the cell. 多染色体包括三染色体都是一条或多条染色体代替了正常细胞中的两条染色体形成的。原声例句生物学基础入门 Down's syndrome and trisomy 18 syndrome are two genetic disorders that are often screened for as part of prenatal genetic testing. 唐氏综合症和 18 三体综合征是两种遗传疾病，通常作为产前基因检测的一部分进行筛查。 Osmosis-遗传 Sometimes though, one parent might contribute one chromosome too many, which is called trisomy, or one chromosome less, which is called monosomy. 但是有时候，双亲中的一方可能会贡献多于一条染色体，这被称为三体；或者少一条染色体，称为单体。 Osmosis-遗传 Since trisomy 15 isn't compatible with life, the fetus only survives only if they lose one copy of the chromosome in the early embryo, called trisomy rescue. 15号染色体三体胎儿不能存活，要想存活就必须在胚胎早期丢失一条染色体，这一过程称为三染色体自救。英语百科 Patau syndrome （重定向自Trisomy 13） Patau syndrome /ˈpætaʊ/ is a syndrome caused by a chromosomal abnormality, in which some or all of the cells of the body contain extra genetic material from chromosome 13. This can occur either because each cell contains a full extra copy of chromosome 13 (a disorder known as trisomy 13 or trisomy D), or because each cell contains an extra partial copy of the chromosome (i.e., Robertsonian translocation) or because of mosaic Patau syndrome. Full trisomy 13 is caused by nondisjunction of chromosomes during meiosis (the mosaic form is caused by nondisjunction during mitosis). The extra genetic material from chromosome 13 disrupts the normal course of development, causing multiple and complex organ defects. Like all nondisjunction conditions (such as Down syndrome and Edwards syndrome), the risk of this syndrome in the offspring increases with maternal age at pregnancy, with about 31 years being the average. Patau syndrome affects somewhere between 1 in 10,000 and 1 in 21,700 live births.
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