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大剂量辐射诱发人类和哺乳动物细胞染色体畸变的研究已有数十年历史,体细胞及生殖细胞染色体的损伤规律比较明确。近年来,人们开始研究小剂量辐射的生物效应。在辐射诱发染色体畸变研究中,由于体细胞染色体畸变规律只能反映受照个体染色体损伤情况,而生殖细胞中产生的染色体畸变,一部分被淘汰,另一部分损伤可传递给子代,引起遗传效应——畸型、不育或
The research of chromosome aberration induced by high dose radiation in human and mammalian cells has been decades-old, and the chromosome damage rules of somatic and germ cells are relatively clear. In recent years, people began to study the biological effects of small doses of radiation. In the study of radiation-induced chromosome aberrations, the chromosome aberration of somatic cells can only reflect the damage of chromosomes in irradiated individuals. The chromosomal aberrations in germ cells are partially eliminated and the other parts of the chromosomes can be passed on to offspring, causing genetic effects - - Deformity, infertility or