Multiple choice

What is bottleneck effect?

  1. natural disaster that randomly wipes out part of population

  2. when a population migrates to a new area

  3. when a barrier permanently separates a population into two

  4. when a group breaks off to form a new population
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The bottleneck effect is a sharp reduction in the size of a population due to environmental events or human activities, which significantly reduces the genetic variation of the population.

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