Mechanisms and Patterns Daily Quiz

What does evolution fundamentally involve?

• Reduction in genetic diversity

• Stable gene frequencies over generations

• Change in individual traits only

• Change in the gene pool over time

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What is a gene pool?

• A storage area for genetic material

• A specific group of genes in an individual

• A collection of all genes in a population

• A pool used in genetic experiments

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Which process is represented by the thumb in the 'Five Fingers of Evolution'?

• Mutation

• Natural selection

• Gene flow

• Non-random mating

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What does the ring finger represent in the 'Five Fingers of Evolution'?

• Non-random mating

• Mutation

• Natural selection

• Gene flow

What could cause the frequency of a gene to change in a population?

• Mutation introducing a new gene

• Stable environmental conditions

• Constant gene frequency

• Lack of genetic diversity

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What is the role of natural selection in evolution?

• It creates organisms better adapted to their local environment

• It decreases genetic diversity

• It ensures gene frequencies do not change

• It prevents mutations

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What happens if the gene frequency changes in a population?

• The population becomes extinct

• Evolution occurs

• There is no effect on the population

• The gene pool becomes less diverse

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Which of the following is NOT a cause of evolution?

• Mutation

• Stable population size

• Gene flow

• Small population size

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Quite often we see organisms that have similar characteristics, not because they have arisen from a common ancestor, but because they have adapted to similar environments. Which type of evolution is this?

• Divergent evolution

• Convergent evolution

• Punctuated equilibrium

• Coevolution

The flower developed a long flower to hold its nectar are the hummingbird in turn developed a long beak to get the nectar. This is an example of

• convergent evolution

• divergent evolution

• coevolution