一、研究的进展 染色体分带是近十多年来发展起来的一项细胞学新技术,它借助特殊的处理程序,使染色体呈现出特定的带纹。关于中期染色体分带的第一篇报导,是在1968年由Cas-person等提出的。他们将细胞学制片用芥子喹吖因(QM)染色后在荧光显微镜下观察,发现染色体上不同部位呈现出强弱不同的明带与暗带。自1970年起,又陆续发展了其它几种染色体分带技术。1971年在巴黎召开了 First, the research progress Chromosomal banding is a cytology developed over the past decade a new technology, which uses special handling procedures, so that the chromosome showed a specific ribbon. The first report on metaphase chromosome zoning was made in 1968 by Cas-person et al. They cytological preparations with mustard quinacridone (QM) staining observed under a fluorescence microscope, found that different parts of the chromosome showed a different intensity of the bright bands and dark bands. Since 1970, several other chromosome zoning techniques have been developed one after another. Held in Paris in 1971