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近年来关于大Y染色体产生的临床效应，曾有过争论，有些学者认为大Y是一种正逢的多态变异．无临床意义。还有的研究提示，大Y是来自Y异染色质中DNA过多的重复，指出大Y与胎儿发胄异常之间有某种关联[1]。作者对95N大Y染色体出带者对生育的影响作以分析，现报告如下。资料与方法
In recent years, there have been controversies about the clinical effect of large Y chromosomes. Some scholars think that large Y is a polymorphic mutation that meets. No clinical significance. Other studies suggest that large Y is a duplication of DNA from Y heterochromatin, pointing out a link between large Y and fetal abnormalities [1]. The author of 95N Y Y chromosome with the impact of those who give birth to make an analysis are as follows. Materials and Methods