Biology Chapter 23: The Evolution of Populations

Play an AI-generated podcast conversation about this lesson

What is the primary condition necessary for a population to be in evolutionary equilibrium?

Allele frequencies remain constant from one generation to the next. (correct)

There is no gene flow into or out of the population.

The population is not subject to genetic drift.

The population is extremely large.

Which of the following is a direct consequence of increased population diversity?

Reduced gene flow

Increased genetic drift

Increased adaptation to the environment

Decreased allele fixation (correct)

What is the term for the entire collection of alleles in a population?

Gene pool (correct)

Genetic drift

Allele frequency

Hardy-Weinberg principle

According to the Hardy-Weinberg principle, what is the condition necessary for a population to be in genetic equilibrium?

All of the above Signup and view all the answers

What is the primary mechanism that maintains evolutionary equilibrium in a population?

Natural selection Signup and view all the answers

What is the process by which a single allele becomes fixed in a population, resulting in the loss of genetic variation?

Allele fixation Signup and view all the answers

What is the outcome of genetic drift in a population?

Loss of genetic variation Signup and view all the answers

Which of the following factors is most likely to increase population diversity?

Gene flow Signup and view all the answers

What is the ultimate outcome of genetic drift in a small population?

Allee fixation Signup and view all the answers

Under what conditions does the Hardy-Weinberg principle apply?

When there is no gene flow, mutation, or genetic drift Signup and view all the answers

What is the result of the bottleneck effect on a population's gene pool?

Reduced genetic diversity Signup and view all the answers

Which of the following factors is least likely to lead to allele fixation in a population?

Gene flow Signup and view all the answers

What is the primary consequence of a population not being genetically representative of the original population?

Loss of genetic variation Signup and view all the answers

What is the primary mechanism driving adaptive evolution in a population?

Natural selection Signup and view all the answers

What is the relationship between fitness and the ability to leave offspring in evolutionary terms?

Fitness is directly proportional to the ability to leave offspring Signup and view all the answers

What is the result of a population being in evolutionary equilibrium?

The population's gene pool is stable and unchanged Signup and view all the answers

What is the primary difference between stabilizing and directional selection?

Stabilizing selection favors intermediate types, while directional selection favors extreme variants Signup and view all the answers

What is the primary consequence of allele fixation in a population?

Loss of genetic variation Signup and view all the answers

Biology Chapter 23: The Evolution of Populations

Podcast Beta

Questions and Answers

What is the primary condition necessary for a population to be in evolutionary equilibrium?

Which of the following is a direct consequence of increased population diversity?

What is the term for the entire collection of alleles in a population?

According to the Hardy-Weinberg principle, what is the condition necessary for a population to be in genetic equilibrium?

What is the primary mechanism that maintains evolutionary equilibrium in a population?

What is the process by which a single allele becomes fixed in a population, resulting in the loss of genetic variation?

What is the outcome of genetic drift in a population?

Which of the following factors is most likely to increase population diversity?

What is the ultimate outcome of genetic drift in a small population?

Under what conditions does the Hardy-Weinberg principle apply?

What is the result of the bottleneck effect on a population's gene pool?

Which of the following factors is least likely to lead to allele fixation in a population?

What is the primary consequence of a population not being genetically representative of the original population?

What is the primary mechanism driving adaptive evolution in a population?

What is the relationship between fitness and the ability to leave offspring in evolutionary terms?

What is the result of a population being in evolutionary equilibrium?

What is the primary difference between stabilizing and directional selection?

What is the primary consequence of allele fixation in a population?

More Quizzes Like This

Evolutionary Biology and Sexual Selection Quiz

Population Genetics: Concepts and Developments

Mechanisms of Evolution and Microevolution

Εξελικτική Βιολογία και Πληθυσμιακή Γενετική

Upgrade to continue