MCAT Question of the Day
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    Q:

    		 Which of the following is an accurate example of the bottleneck effect?
    		 

    A

    		 a small subset of a bird population leaves an island and re-populates a distant island, resulting in a new population with a low amount of genetic variation

    B

    		 a volcano erupting and killing all members of a particular species, affecting food chain dynamics

    C

    		 the presence of a polymorphism in a particular butterfly population which becomes less prevalent over time as it renders the animal more susceptible to predators

    D

    		 a large surge in hunting of a particular whale results in a severely decreased population and decreased genetic variation



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