进行外界因素诱发染色体畸变的研究,采用小白鼠作为实验动物,有易于取得、饲养方便、处理简单及结果迅速之优点。此种实验有两点重要的要求:一是希望在每一动物取得较多数量的细胞中期分裂象,以保证实验结果准确性;一是需要染色体分散良好,以利于观察计数及摄影。一般常利用小白鼠股骨的骨髓进行直接法观察。结合我实验室制备染色体标本的方 Chromosome aberration induced by external factors research, the use of mice as experimental animals, easy to obtain, easy to raise, the advantages of simple processing and rapid results. This experiment has two important requirements: First, we hope that in each animal to obtain a larger number of metaphase cells in order to ensure the accuracy of experimental results; First, the need for good chromosome dispersion in order to facilitate the observation and photography. Commonly used mouse bone marrow femur for direct observation. Combine my lab to prepare chromosome specimens