trisomy 21

常見例句

Around 30% of these cases are associated with trisomy 21.
大約30%25這些病例同時合并又21三染色體。
Cases of trisomy 21 were identified from the cytogenetics laboratory logbook.
Down綜合征（21三體綜合癥）的鑒別參照細胞遺傳學(xué)手冊。
Amniocentesis was performed to rule out trisomy 21;the karyotype was normal: 46,XX.
羊水穿刺排除了21三體，染色體組型正常，46，XX。
A short femur is associated with trisomy 21 rather than trisomy 13 and holoprosencephaly.
股骨短與21-三體而不是13-三體或全前腦畸形有關(guān)。
Down syndrome (trisomy 21) is a disorder caused by the presence of an extra 21st chromosome.
唐氏綜合癥（三染色體21）是由于存在額外的第21號染色體而產(chǎn)生的一種疾病。
So this fetus presented seeral signs of trisomy 21, including the hypoplasia of the nasal bone, hypodontia, micrognathia, and hypospadias.
這樣，本例胎兒顯示21三體的若干征象：包括鼻骨發(fā)育不全、牙發(fā)育不全、小頜和尿道下裂。