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In a population of doves in a forest, a small group of long-tailed doves migrates to another forest. Over successive generations, the population in the new habitat shows more of the long-tailed doves than the short-tailed ones. Which factor could be responsible for this microevolution?

AStabilizing selection
BFounder effect
CGene mutation
DBottleneck effect

Verified Answer :

in a population of doves in a forest, a small group of long-tailed doves migrates to another forest. Over successive generations, the population in thenew habitat shows more of the long-tailed doves than the short-tail the factor thatcould be responsible for this microevolution is founder effect

I believe the answer is: Founder effect 

Founder effect  refers to the situation when a certain population loss their genetic variation due to individuals from outside their population come in and mixed up their genetics. Founder effect is most commonly happened in population with a small area and very little genetic variations.

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