One Missing Gene Leads To Fruitless Mating Rituals

Male fruit flies missing a gene for one particular odor receptor become clueless in matters of love, scientists have discovered. Because they lack the ability to read important chemical cues, these flies will indiscriminately attempt to have sex with other males, and with females who have already mated. The signals they're missing are pheromones wafting from mated females and male flies.

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