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This quiz contains 13 questions from a mix of 1 subtopics.
Which of the following statements about genetic drift is true?
it enhances the frequency of alleles that improve survival
it introduces new alleles into a population
it impacts large populations more significantly
it causes random changes in allele frequencies
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Which of the following factors can limit population size?
neither density-dependent nor density-independent factors
density-independent factors
both density-dependent and density-independent factors
density-dependent factors
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Which of the following is an example of a density-independent factor?
climate change
disease
predation
competition
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What happens to a population's gene pool and diversity during a population bottleneck?
they fluctuate
they increase
they remain the same
they decrease
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Which of the following is true about the founder effect?
it leads to increased genetic diversity compared to the original population
rare alleles from the original population may become more common in the new population
it occurs when new populations are established by a large number of individuals
it has no impact on the gene pool of the new population
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Which of the following factors involves the transfer of alleles between populations?
gene flow
mutation
genetic drift
sexual selection
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Which of the following factors increases the frequency of alleles that enhance mating success specifically?
sexual selection
gene flow
genetic drift
mutation
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What determines a population's potential for natural selection to occur?
genetic variation
population size
neither population size nor genetic variation
both population size and genetic variation
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Which of the following statements about large populations is true?
they are capable of adapting effectively to selection pressures through natural selection
they have small gene pools and limited genetic diversity
they are at a higher risk of extinction when encountering environmental changes
they have reduced fertility due to inbreeding
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Which of the following is an example of a density-dependent factor?
climate change
natural disasters
predation
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Which of the following is true about the founder effect?
it occurs when new populations are established by a small number of individuals
it has no impact on the gene pool of the new population
common alleles from the original population will always become less common in the new population
it leads to increased genetic diversity compared to the original population
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What is the term for the transfer of alleles between populations?
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What is the term for the random changes in allele frequencies that impact small populations more significantly?
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