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Fruit Fly Behavior: Predict and Justify

APBIO-HYDFNO

Fruit flies (Drosophila melanogaster) are attracted to odors found in rotting fruit. A culture of fruit flies is placed in a choice chamber with a rotten apple on one side, and a fresh apple on the other side.

Predict the location of the fruit flies after ten minutes, and justify your prediction.

A

The fruit flies will move toward the fresh apple, as they are attracted to the scent of the fruit.

B

The fruit flies will move toward the rotten apple, as they are attracted to the odors found in rotting fruit.

C

The fruit flies will move randomly throughout the container since the stimulus spreads the odor throughout the choice chamber.

D

The fruit flies will locate in a uniform dispersion pattern since the stimulus spreads odor throughout the choice chamber.