Methods The (CGG) n in the FMR-1 gene was amplified by polymerase chain reation (PCR) and then detected by the hybridization with biotin-labeled CGG oligonucleutide.

• 方法 采用生物素标记的CGG寡核苷酸探针 ,检测通过PCR扩增的FMR - 1基因中CGG三核苷酸重复序列数目。