trisomy 21

同根派生

• trisomy 21相關(guān)詞

英漢例句

• Around 30% of these cases are associated with trisomy 21.
  大約30%25這些病例同時(shí)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(xì)胞遺傳學(xué)手冊(cè)。
• 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(hào)染色體而產(chǎn)生的一種疾病。

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