Here are scientific evidences

http://genome.cshlp.org/content/10/2/157.full

https://www.psychologytoday.com/articles/201109/the-incredible-expanding-adventures-the-x-chromosome

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多谢我要好好看看 -yourolddad- 给 yourolddad 发送悄悄话 (0 bytes) () 03/09/2015 postreply 11:50:07

看完第二编文章(第一编太学术了四家才看) -yourolddad- 给 yourolddad 发送悄悄话 (95 bytes) () 03/09/2015 postreply 14:15:06

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