Unit 7 Check 3: Variation & Population Evolution

What is the cause for all variation within a population?

• Natural Selection
• Adaptation
• Mutation
• Environmental Changes

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An organism's ability to survive and reproduce in its environment refers to its

• Fitness
• Variation
• Selection
• Mutation

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Ten light tan mice and ten black mice are placed in a desert environment. What will happen to the black population over time?

• It will increase

• It will decrease

• It will stay the same

• There is no way to tell

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The combined genetic information of a population forms a..

• Genotype

• Gene Pool

• Phenotype

• Bottle Neck

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In a fox population, the allele frequency of a gene for red fur changes from 20% to 30%. What can you say about the population of foxes?

• The population is expanding

• The population is evolving

• The population is decreasing

• The population is not evolving

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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.

• Genetic Drift
• Natural Selection
• Non-random mating
• Mutation

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During gestation (pregnancy), a developing male pig had a change in his genetic code. The result was that he was able to walk and do karate.

• Genetic Drift
• Non-random mating
• Mutation
• Natural Selection

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Five hundred years after the deer had established a flourishing population in the park, a few of them venture back to their original woods and have babies with the deer there.

• Genetic Drift
• Mutations
• Non-random mating
• Gene flow

Wolves from the Arizona mesa were transferred to the Colorado Rockies after a forest fire destroyed their habitat. They quickly became part of the local pack and had offspring.

• Mutation
• Natural Selection
• Genetic Drift
• Gene Flow

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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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