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Questions and Answers
Which term describes the occurrence when natural selection maintains stable frequencies of two or more phenotypic forms in a population?
Which term describes the occurrence when natural selection maintains stable frequencies of two or more phenotypic forms in a population?
- Frequency-dependent selection
- Deleterious mutation
- Heterozygote advantage
- Balancing selection (correct)
What is the term for the advantage that heterozygotes have a higher fitness than both homozygotes?
What is the term for the advantage that heterozygotes have a higher fitness than both homozygotes?
- Deleterious mutation
- Balancing selection
- Frequency-dependent selection
- Heterozygote advantage (correct)
Which type of selection occurs when the fitness of a phenotype depends on its frequency in the population?
Which type of selection occurs when the fitness of a phenotype depends on its frequency in the population?
- Heterozygote advantage
- Frequency-dependent selection (correct)
- Balancing selection
- Deleterious mutation
What is the term for the advantage that the sickle-cell allele causes deleterious mutations in hemoglobin but also confers malaria resistance?
What is the term for the advantage that the sickle-cell allele causes deleterious mutations in hemoglobin but also confers malaria resistance?
Which type of selection includes heterozygote advantage and frequency-dependent selection?
Which type of selection includes heterozygote advantage and frequency-dependent selection?
What is the term for the occurrence when natural selection maintains stable frequencies of multiple phenotypic forms in a population?
What is the term for the occurrence when natural selection maintains stable frequencies of multiple phenotypic forms in a population?
Which type of selection occurs when the fitness of a phenotype depends on its frequency in the population?
Which type of selection occurs when the fitness of a phenotype depends on its frequency in the population?
What is the term for the advantage that heterozygotes have a higher fitness than both homozygotes?
What is the term for the advantage that heterozygotes have a higher fitness than both homozygotes?
Which type of selection includes heterozygote advantage and frequency-dependent selection?
Which type of selection includes heterozygote advantage and frequency-dependent selection?
What is the term for the advantage that the sickle-cell allele causes deleterious mutations in hemoglobin but also confers malaria resistance?
What is the term for the advantage that the sickle-cell allele causes deleterious mutations in hemoglobin but also confers malaria resistance?
Which type of selection depends on the frequency of a phenotype in a population?
Which type of selection depends on the frequency of a phenotype in a population?
What advantage do 'left-mouthed' fish have in a population of scale-eating fish when 'right-mouthed' individuals become more common?
What advantage do 'left-mouthed' fish have in a population of scale-eating fish when 'right-mouthed' individuals become more common?
What is sexual selection?
What is sexual selection?
What can sexual selection result in?
What can sexual selection result in?
Why can natural selection not fashion perfect organisms?
Why can natural selection not fashion perfect organisms?
What is the main limitation of natural selection?
What is the main limitation of natural selection?
What limits evolution?
What limits evolution?
Why are adaptations often compromises?
Why are adaptations often compromises?
What factors interact in the process of natural selection?
What factors interact in the process of natural selection?
What is sexual dimorphism?
What is sexual dimorphism?
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