Bottleneck and Founder Effect

Which of the following could not be a possible cause of the bottleneck effect?

• Overhunting of northern elephant seals

• A forest fire that destroys most of a population of deer

• A crop that is destroyed by blight

• A small group of fish that are added to a pond

In which of the following populations would genetic drift be most likely to cause a rapid evolution of the population?

• The human population of India

• A large population of Mexican free-tailed bats living in central Texas

• A geographically isolated population of 5000 green tree frogs

• A small group of 12 cheetahs living in Namibia

A virus killed most of the seals in the North Sea (e.g. dropped the population from    8000 to 800).  In an effort to help preserve the species, scientists caught 20 of the   remaining seals and used them to start a new population in the northwest Pacific   Ocean.  Which of the following statements would accurately describe the new   population?  

• The new seal population is genetically less diverse than the original population 

• The new seal population is genetically more diverse than the original population

• There is equal genetic variety compared  to the original population 

• None of the answers

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The type of genetic drift that follows the colonization of a new habitat by a small group of individuals is called

• the Hardy-Weinberg principle

• the founder effect

• directional selection

• the bottleneck effect

One day a group of scientists collected a small group of brown anole lizards from a large group of the lizards.  Then they placed this small group of lizards on an island that had no brown anole lizards on it.  What is this an example of?

• Bottleneck Effect

• Hardy Effect

• Founder Effect

• None of These

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What does the picture represent?

• Founder Effect

• Mutations

• Bottleneck effect

• Gene Flow

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A few deer wander out of their native woods into a completely new park where no deer had ever been before. They go on to create an entirely new population.

• gene pool 

• founder effect

• bottleneck

• mutation

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Which of the following scenarios best illustrates the bottleneck effect?

• A volcanic eruption reduces a population of birds to a few individuals.

• A small group of rabbits colonizes a new island.

• A disease wipes out a small percentage of a large population of deer.

• A few fish are introduced into a new pond.

What is a key difference between the bottleneck effect and the founder effect?

• Bottleneck effect involves a large population, founder effect involves a small group.

• Bottleneck effect reduces genetic diversity, founder effect increases genetic diversity.

• Bottleneck effect is caused by natural disasters, founder effect is caused by migration.

• Bottleneck effect occurs in plants, founder effect occurs in animals.

In a population bottleneck, what is the primary consequence for the genetic diversity of the population?

• Genetic diversity increases.

• Genetic diversity decreases.

• Genetic diversity remains the same.

• Genetic diversity is eliminated.