trisomy 21

同根派生

英汉例句

• Around 30% of these cases are associated with trisomy 21.
  大约30%25这些病例同时合并又21三染色体。
• Cases of trisomy 21 were identified from the cytogenetics laboratory logbook.
  Down综合征（21三体综合症）的鉴别参照细胞遗传学手册。
• Amniocentesis was performed to rule out trisomy 21;the karyotype was normal: 46,XX.
  羊水穿刺排除了21三体，染色体组型正常，46，XX。
• A short femur is associated with trisomy 21 rather than trisomy 13 and holoprosencephaly.
  股骨短与21-三体而不是13-三体或全前脑畸形有关。
• Down syndrome (trisomy 21) is a disorder caused by the presence of an extra 21st chromosome.
  唐氏综合症（三染色体21）是由于存在额外的第21号染色体而产生的一种疾病。