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The Ratio of X- and Y-Bearing Sperm in Ejaculates of Men with Three or More Children of the Same Sex

机译:育有三个或三个以上同性孩子的男性射精中含X和Y精子的比率

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摘要

>Purpose:The present study evaluated the proportions of X-bearing and Y-bearing sperm within the semen of donors who were the declared fathers of three or more sons or daughters.>Methods:The proportions of sperm were determined using dual-color fluorescence in situ hybridization to identify the X and Y chromosomes.>Results:The only difference observed was in semen volume. There was no increase in the proportion of Y-bearing sperm for men with only sons (49.7 ± 1.3%) or of X-bearing sperm for men with only daughters (44.8 ± 2.6%).>Conclusions:A preponderance of either sons or daughters in a family cannot be explained simply by an altered ratio of X-bearing and Y-bearing sperm in the father's semen.
机译:>目的:本研究评估了三个或三个以上儿子或女儿的父亲的供体精子中含X和Y精子的比例。>方法:使用双色荧光原位杂交确定X和Y染色体,确定精子的比例。>结果:观察到的唯一区别是精液量。独生子男性的Y型精子比例(49.7±1.3%)没有增加,独生子男孩的Y型精子比例(44.8±2.6%)没有增加。>结论:不能简单地通过父亲精液中X轴和Y轴精子比例的改变来解释一个家庭中儿子或女儿的优势。

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