Podcast
Questions and Answers
Which process causes traits that enhance survival or reproduction to increase in frequency over time?
Which process causes traits that enhance survival or reproduction to increase in frequency over time?
- Adaptive evolution
- The founder effect
- Genetic drift
- Natural selection (correct)
What is genetic drift?
What is genetic drift?
- The process where genetic variation is reduced through loss of alleles
- The process where traits that enhance survival or reproduction increase in frequency over time
- The process where allele frequencies fluctuate unpredictably from one generation to the next (correct)
- The process where a few individuals become isolated from a larger population
How does genetic drift affect genetic variation?
How does genetic drift affect genetic variation?
- It has no effect on genetic variation
- It stabilizes genetic variation
- It reduces genetic variation through loss of alleles (correct)
- It increases genetic variation through the introduction of new alleles
What is the founder effect?
What is the founder effect?
How can allele frequencies in the founder population be different from the parent population?
How can allele frequencies in the founder population be different from the parent population?
Which process involves the increase in frequency of alleles that enhance survival or reproduction?
Which process involves the increase in frequency of alleles that enhance survival or reproduction?
What causes the increase in frequency of alleles that enhance survival or reproduction?
What causes the increase in frequency of alleles that enhance survival or reproduction?
Which process reduces genetic variation through loss of alleles?
Which process reduces genetic variation through loss of alleles?
What is the process where allele frequencies fluctuate unpredictably from one generation to the next?
What is the process where allele frequencies fluctuate unpredictably from one generation to the next?
What is the process where a few individuals become isolated from a larger population?
What is the process where a few individuals become isolated from a larger population?
According to the Hardy-Weinberg equation, what is the frequency of the dominant allele in the population?
According to the Hardy-Weinberg equation, what is the frequency of the dominant allele in the population?
What is the frequency of carriers for PKU in the U.S. population?
What is the frequency of carriers for PKU in the U.S. population?
Which factor can alter allele frequencies in a population through the process of natural selection?
Which factor can alter allele frequencies in a population through the process of natural selection?
What is the primary mechanism by which natural selection alters allele frequencies?
What is the primary mechanism by which natural selection alters allele frequencies?
What is the approximate frequency of PKU occurrence in the population?
What is the approximate frequency of PKU occurrence in the population?
What is the frequency of the recessive allele in the population?
What is the frequency of the recessive allele in the population?
Which factor can alter allele frequencies in a population through random sampling effects?
Which factor can alter allele frequencies in a population through random sampling effects?
What is the term used to describe the increase in frequency of an allele due to its advantage in surviving exposure to DDT pesticide?
What is the term used to describe the increase in frequency of an allele due to its advantage in surviving exposure to DDT pesticide?
Which major factors can alter allele frequencies and bring about most evolutionary change?
Which major factors can alter allele frequencies and bring about most evolutionary change?
What is the frequency of carriers for PKU in the U.S. population, approximately?
What is the frequency of carriers for PKU in the U.S. population, approximately?
