Question

How to differentiate a male and a female in drosophila melanogaster?

Answer 1

The most simple characteristic to use to differentiate the two is to look at the genitalia of the flies. Males have dark, rounded genitalia at the tip of their abdomen, whereas females have light, pointed genitalia.

Answer 2

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Male Drosophila are generally smaller than their female counterparts, and have a darker abdomen. The posterior segments of the Drosophila female are only pigmented in their posterior halves, whereas these segments are almost completely pigmented in the males