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The whole article is about balancers in Drosophila, though portions are presented in general terms. The worm community makes good use of balancers as well, and I recall at least one paper where an inversion is used for a forward genetic screen in mice. Is anyone adverse to me separating out the fly-specific from the general information and giving specific species their own sections? — Preceding unsigned comment added by 22.214.171.124 (talk) 23:28, 5 December 2012 (UTC)