Podcast
Questions and Answers
What is gene flow?
What is gene flow?
Genetic drift affects the genetic makeup of a population randomly.
Genetic drift affects the genetic makeup of a population randomly.
True
What is the role of natural selection in evolution?
What is the role of natural selection in evolution?
Natural selection results in the survival of organisms that are better adapted to their environment, allowing them to pass on advantageous traits.
Mutations can be ______, ______, or ______.
Mutations can be ______, ______, or ______.
Signup and view all the answers
Match the following concepts with their descriptions:
Match the following concepts with their descriptions:
Signup and view all the answers
Study Notes
Biological Evolution
- Biological evolution is the change in a population's inherited traits over generations.
- A population is a group of the same species with differing traits.
- Traits are coded by genes; variation in genes leads to variation in the population.
- Changes in genes can affect how a population evolves.
Gene Flow
- Gene flow is the movement of genes between populations.
- This can occur during migration.
- Migration can alter the genetic makeup of a population.
- Gene flow can be beneficial, harmful, or neutral.
Mutation
- Mutation is a change in the genetic material of a population.
- Mutations can either be beneficial, harmful, or neutral.
- Mutations can cause changes in a population.
Genetic Drift
- Genetic drift is a change in the genetic makeup of a population resulting from a random event.
- The gene pool of the remaining population may not represent the original gene pool and these changes can have an impact the genetic makeup of a population.
Natural Selection
- Natural selection is the process where populations that are more adapted to their environment are more likely to survive.
- Organisms that are better adapted pass on their genes, contributing to successful adaptations.
- Organisms that die off have less options for reproduction and have lower biological fitness.
Evolutionary Evidence
Homology
- Homology refers to similarities due to a common ancestor.
- Molecular evidence supports the relatedness of animals, due to common DNA.
- Anatomical structures that are similar in arrangement and form, although with different functions, are considered homologous.
- Homologous structures inherit from a common ancestor but may function differently (e.g., bird wings versus bat wings).
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Explore the fundamental concepts of biological evolution, gene flow, mutation, and genetic drift. This quiz will test your understanding of how these processes influence the genetic makeup of populations over time. Prepare to dive into the mechanisms that drive evolution.
