Talk:X:A ratio

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Expert expansion

This article has craved attention from an expert since 2008, and its needs appear to be obvious. It needs more information added about this ratio, why it is different from the human method of sex determination via the Y chromosome and some good reliable sources are needed, as well. Help! – Paine Ellsworth ^CLIMAX! 19:28, 23 August 2013 (UTC)[reply]