n.[生]三(染色)體性；三(染色)體細(xì)胞
An aneuploid state in which a third homologous chromosome is present in addition to the normal autosomal pair is called trisomy. 除了正常染色體對以外，還存在有第二種同源染色體的非整倍體狀態(tài)，被稱為三體性。
