Podcast
Questions and Answers
Which process involves the survival and reproduction of individuals with favorable traits, leading to a change in the genetic makeup of a population over time?
Which process involves the survival and reproduction of individuals with favorable traits, leading to a change in the genetic makeup of a population over time?
- Mutation
- Genetic drift
- Natural selection (correct)
- Gene flow
When does natural selection occur?
When does natural selection occur?
- During fertilization
- During meiosis
- Throughout an organism's life (correct)
- During mitosis
Which of the following is NOT a mechanism of natural selection?
Which of the following is NOT a mechanism of natural selection?
- Disruptive selection
- Directional selection
- Stabilizing selection
- Genetic drift (correct)
Which of the following best describes macroevolution?
Which of the following best describes macroevolution?
What is microevolution?
What is microevolution?
What is the main difference between macroevolution and microevolution?
What is the main difference between macroevolution and microevolution?
Population genetics is the study of how ______ change in frequency over time within a population.
Population genetics is the study of how ______ change in frequency over time within a population.
______ genetics focuses on the genetic variation within and between populations of the same species.
______ genetics focuses on the genetic variation within and between populations of the same species.
By studying population genetics, scientists can gain insights into the processes that drive ______ change and evolution.
By studying population genetics, scientists can gain insights into the processes that drive ______ change and evolution.
Study Notes
Natural Selection
- Involves the survival and reproduction of individuals with favorable traits, leading to a change in the genetic makeup of a population over time
When Does Natural Selection Occur?
- Natural selection occurs when individuals with favorable traits are more likely to survive and reproduce, passing those traits to their offspring
Mechanisms of Natural Selection
- Mutation, genetic drift, gene flow, and genetic hitchhiking are mechanisms of natural selection
- NOT a mechanism of natural selection: use of antibiotics to kill bacteria
Macroevolution and Microevolution
- Macroevolution: the process of major evolutionary changes that occur over long periods of time, resulting in the formation of new species
- Microevolution: the process of small-scale evolutionary changes that occur within a population over a relatively short period of time
Population Genetics
- The study of how gene frequencies change in frequency over time within a population
- Focuses on the genetic variation within and between populations of the same species
- By studying population genetics, scientists can gain insights into the processes that drive evolutionary change and evolution
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Description
Test your knowledge on natural selection and its mechanisms with this quiz. Learn about the process that leads to a change in the genetic makeup of a population over time and discover which mechanisms are not involved in natural selection.
