Disruptive selection is the opposite of stabilizing selection because the intermediate types are selected against.

In an experiment disruptive selection was applied to a population of Drosophila on the basis of bristle number.

In each generation, only the flies with high- or low-bristle numbers are allowed to breed.

After several generations, most of the flies could be easily placed in a low- or high-bristle category.

In natural populations, such a situation might exist for a population in a heterogeneous HinT