除了正常染色体对以外，还存在有第二种同源染色体的非整倍体状态，被称为三体性。

除了正常染色体对以外，还存在有第二种同源染色体的非整倍体状态，被称为三体性。的英文翻译

基本释义

• An aneuploid state in which a third homologous chromosome is present in addition to the normal autosomal pair is called trisomy.