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. Author manuscript; available in PMC: 2008 Jul 24.
Published in final edited form as: Curr Opin Neurobiol. 2008 Mar 17;17(6):675–683. doi: 10.1016/j.conb.2008.01.009

Figure 1.

Figure 1

A bilateral gynandromorphic finch in which the right half of the body (A), gonads (B), sex-chromosome linked gene expression in the brain (C), and volume of sexually dimorphic nuclei (D) have male characteristics, while the left half is female-like. Striking sex differences have developed and are maintained in each side of the brain although they have been exposed equally to circulating gonadal hormones. This result supports the existence of cell-autonomous information provided by sex chromosome genes and independent from gonadal sex hormones (modified from Agate RJ, et al., 2003 with permission from authors).