An earthquake decimates a ground-squirrel population, killing 98% of the squirrels. the surviving population happens to have broader stripes, on average, than the initial population. if broadness of stripes is genetically determined, what effect has the ground-squirrel population experienced during the earthquake?

The survivors,that is 2% of the initial population has lost the genetical  information of the less wide stripes.

Explanation:

Genetic information, as the broadness stripes is   inherited from generation to generation, and this type of ground squirrel have been eliminated in the genetic line, so the next generations will be based in the 2% of broader stripes  squirrels.

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