激光能使一个染色体造成局部缺损或整个丧失,结果失去局部或全部的遗传信息;激光能引起染色体断裂或形成片断,断裂的染色体可改变位置,以新的格局重新结合起来,形成所谓移位现象;一个片断的染色体可以180°转向,然后重新接合 Laser can make a chromosome cause local damage or loss, resulting in the loss of some or all of the genetic information; laser can cause chromosome breakage or the formation of fragments, broken chromosomes can change position, with a new pattern of recombination, the formation of the so-called shift phenomenon ; A fragment of the chromosome can be 180 ° steering, and then re-engage