In Drosophila, sex is determined by the X:A ratio, with a ratio of 1 or more indicating female and 0.5 or less indicating male.
In Drosophila, sex determination is based on the X:A ratio; a ratio of 1 or greater results in a female, while 0.5 or lower results in a male.
| Front | Sex determination in Drosophila |
|---|---|
| Back | If X:A is equal to or greater than 1, then female If X:A is 0.5 or lower, then male |
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