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染色体带型分析是1970年以来分析研究染色体的一种新技术。它是用萤光染料一芥子阿的平(QM)染色,使各染色体沿其长轴上显现出明暗交替的萤光带(称Q带),或用特殊的Giemsa染色方法使各染色体显示出着色深浅不同的带(G带),以及用碱处理,热处理等而显示的C带、T带、R带等。应用这种方法可将人体细胞中的46个染色体完全区别出来,而且根据每个染色体的特定带型的变化,即使是微细的异常,也可认
Chromosome banding analysis is a new technique for analyzing chromosomes since 1970. It is stained with a fluorescent dye, mustard A (QM), so that each chromosome shows a fluorescent band (called the Q band) alternating with light and dark on its long axis, or each chromosome is shown by a special Giemsa staining Bands (G band) of different shades of color, C band, T band, R band and the like which are displayed by alkali treatment, heat treatment and the like. Using this method can be completely differentiated from the 46 chromosomes in human cells, and according to the change of the specific banding pattern of each chromosome, even a slight abnormality can be recognized