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