Genetic Link To Gender Identity

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26th October 2008, 04:02pm - Views: 1215
Under embargo until 00.01am Mon 27 Oct (AEDT)
Contact: Ian Muchamore, PHI : 0415 551 705

In the largest ever genetic study of male to female transsexuals Australian researchers have found a significant genetic link between gender identity and a gene involved in testosterone action.

DNA samples were collected from 112 male to female transsexuals and researchers compared genetic differences with non transsexuals.

The researchers discovered that male to female transsexuals were more likely to have a longer version of a gene which is known to modify the action of the sex hormone testosterone.

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