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未来男性或消失？Y染色体500万年后恐不复存在
source link: http://tech.sina.com.cn/d/f/2018-01-29/doc-ifyqyuhy7247909.shtml
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新浪科技讯北京时间1月29日消息，据国外媒体报道，自人类诞生以来，男人便在决定后代性别中扮演了重要角色。一半的精子中都携带有Y染色体，正是它们决定了后代将是男是女。如果存在Y染色体，则后代为男性；而如果缺少Y染色体，则后代为女性。如今科学家
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