If a Population of Butterflies Is Under Strong Natural Selection

question 10

Multiple Choice

If a population of butterflies is under strong natural selection favoring large wings but there is no genetic variation for wing size, what do we expect to occur in the next generation?

• A) Wings will evolve to be smaller.
• B) There will be no evolutionary change in wing size.
• C) Wings will evolve to be larger.
• D) Wings will evolve to be more variable.

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