微核(MN)即细胞质内额外的核小体,是染色体的一种异常表现。微核试验(MT)是一种细胞遗传学快速测定法,比目前常用的灵敏度相当的中期染色体分析方法更为快捷,简便、经济。十多年来,MT 已被广泛应用于环境污染的监测、遗传毒理学、电离辐射、药物研究等方面;近几年来该技术已越来越 The micronucleus (MN), the extra nucleosome in the cytoplasm, is an abnormal expression of the chromosome. The micronucleus test (MT) is a rapid cytogenetic assay that is faster, simpler, and more economical than the commonly used medium-term chromosome assays with comparable sensitivity. For more than a decade, MT has been widely used in environmental pollution monitoring, genetic toxicology, ionizing radiation, drug research, etc.; in recent years, the technology has become more and more