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A meta analysis of four linkage studies advised that Xq28 plays a role that is important male homosexuality

The clear presence of a considerable component that is genetic the growth of intimate orientation is obvious from family members and double studies ( Bailey and Bell, 1993; Bocklandt and Vilain, 2007 ). Nevertheless, exactly which genes may play a role just isn't yet clear.

Relating to LeVay and Hamer (1994) , how big is the component that is genetic homosexuality for both sexes has ended 50%. Lots of hereditary research reports have recommended transmission that is maternal showing X connected inheritance. The X chromosome has accumulated genes tangled up in intercourse, reproduction, and cognition.