现在位置: 首页 > MyFreeCams Big Butt Real Sex Chat > 文章
The current presence of an amazing hereditary component in the introduction of intimate orientation is obvious from family members and double studies ( Bailey and Bell, 1993; Bocklandt and Vilain, 2007 ). But, exactly which genes may play a role just isn't yet clear. Based on LeVay and Hamer (1994) , how big is the hereditary component in homosexuality for both sexes is finished 50%. Lots of...
阅读全文