You forget to throw away a rotten apple, and the next day there are a lot of little flies around. Moreover, they appear even if all windows are tightly closed. These are fruit flies called fruit flies. So where do they come from?
It turns out that fruit flies lay their eggs on fruits and other greens even before they are plucked. We already bring home greens with fruit fly eggs from the store, but only when rotting begins, favorable conditions are created for the birth of flies. Drosophila reproduce very quickly and their number reaches tens in a few days.
Small size, short life cycle and ease of cultivation have made it possible to use a number of Drosophila species as objects of genetic research. Currently, Drosophila D. melanogaster is one of the most studied species of living organisms.