Founder Effect

• gene flow

• natural selection

• bottleneck effect

• founder effect

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Which of the following is an example of the founder effect?

• Humans choose two dogs they like the characteristics of and breed them together.

• Affected individuals with blue skin can trace their ancestry back to one of the first settlers in the region.

• The environment of a fox population changes and over time foxes who are white survive and pass on their genes to their offspring.

• Cheetah populations reach their lowest levels with reduced diversity and as they rebound are so genetically similar they appear to be inbred.

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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

What does the Founder Effect refer to in the context of evolution and genetic change in populations?

• The effect of natural selection on a large, diverse population

• The genetic drift that occurs when a new population is established by a very small number of individuals from a larger population

• The increase in genetic mutations when a population size becomes too large

• The process by which a new species is created from an existing species

Describe the Bottleneck Effect and the Founders Effect.

• Both are types of genetic drift; the Bottleneck Effect occurs when a population's size is reduced for at least one generation, and the Founders Effect occurs when a new colony is started by a few members of the original population.

• Both are types of natural selection; the Bottleneck Effect occurs when a population's size is reduced for at least one generation, and the Founders Effect occurs when a new colony is started by a few members of the original population.

• Both are types of gene flow; the Bottleneck Effect occurs when a population's size is reduced for at least one generation, and the Founders Effect occurs when a new colony is started by a few members of the original population.

• Both are types of mutation; the Bottleneck Effect occurs when a population's size is reduced for at least one generation, and the Founders Effect occurs when a new colony is started by a few members of the original population.

What is the Founder Effect in population genetics?

• A) A type of genetic drift that occurs when a new population is established by a small number of individuals

• B) A process of natural selection favoring the fittest individuals

• C) A mutation that occurs in a large population

• D) A type of gene flow between two large populations

Which of the following scenarios best illustrates the Founder Effect?

• A) A large population of birds migrates to a new island

• B) A small group of beetles is isolated on a new island, leading to a new population

• C) A population of fish experiences a sudden decrease in size due to a natural disaster

• D) A species of plants undergoes a mutation that spreads throughout the population

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How does the Founder Effect impact genetic diversity?

• A) It increases genetic diversity by introducing new alleles

• B) It decreases genetic diversity due to a limited gene pool

• C) It has no impact on genetic diversity

• D) It stabilizes genetic diversity by balancing allele frequencies

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In which situation would the Founder Effect most likely occur?

• A) A large population of mammals migrates to a new continent

• B) A small group of insects colonizes a new habitat

• C) A population of birds experiences a genetic mutation

• D) A species of fish undergoes natural selection