chromosomal duplication

基本解释

Chromosome disorder --- A clinical condition caused by an abnormal chromosome constitution in which there is duplication, loss, or rearrangement of chromosomal material.
染色体结构和数目异常引起的遗传病，包括染色体的重复、丢失和重排等。
Chromosomal abnormalities are thought to account for 10 to 20 percent of cases and duplication of chromosome 15q11-13 is the only recurrent aberration so far linked to the disease.
有人认为，染色体异常可能会占孤独症病例的百分之十到二十，而15q11-13区段的染色体重复，是目前唯一所知的能和孤独症相关联的异常。