Questions and Answers
Which of the following is a common misconception about evolution?
What is microevolution?
Which of the following is NOT one of the main mechanisms that cause allele frequency change?
Which mechanism consistently causes adaptive evolution?
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What is a prerequisite for evolution by natural selection?
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What is the smallest unit of evolution, according to the text?
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What is the main factor that causes allele frequency change due to random events?
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What is the term used to describe the flow of genes between populations?
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What is the main mechanism of evolution that acts on individuals?
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Which figure in the text provides evidence of selection by food source?
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According to Mendel's work on pea plants, what did it provide evidence of?
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What does genetic variation reflect?
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What is genetic variation?
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How are some phenotypic differences classified?
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What determines traits that can be classified on an 'either-or' basis?
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What causes other phenotypic differences that vary along a continuum?
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How can genetic variation be measured at the molecular level?
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Where do most nucleotide variations occur?
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Do variations in coding regions (exons) affect the protein's sequence of amino acids?
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What does Figure 21.4 show about genetic variation at the molecular level?
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