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比较基因组杂交（comparativegenomehybriclization，CGH）是一种将原位荧光杂交技术与数字图象分析相结合，用于检测肿瘤组织DNA异常（缺失、扩增、复制），并在染色体上定位的细胞遗传学新方法（门。与传统分子水平的DNA检测手段相比，在一次实验中即可对整个基因组进行分析
Comparative genomic hybridization (CGH) is a combination of in situ fluorescence hybridization and digital image analysis for the detection of DNA abnormalities (deletions, amplifications, replications) in tumor tissues and cytogenetic mapping on chromosomes. New method (door. Compared to traditional molecular level DNA detection methods, the whole genome can be analyzed in one experiment