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- 1. Multiple Choice
A type of genetic drift in which small groups of organisms separate from a larger population and form new small colonies.
Gene Flow
Founder Effect
Natural Selection
Artificial Selection
- 2. Multiple Choice
The exchange of genes between two populations.
Genetic Drift
Founder Effect
Gene Flow
Genetic Recombination
- 3. Multiple Choice
This term refers to the total genetic information found in a population; the complete collection of all the alleles found in a population
Gene library
Genome
Gene pool
Allele pool
- 4. Multiple Choice
This is one of the mechanisms of evolution; it occurs when individuals move into or out of a population, either by physically arriving or leaving, or by being born or dying
Gene flow / genetic drift
Founder effect
Natural selection
Microevolution
- 5. Multiple Choice
This is one of the mechanisms of evolution; it is a continuous process in which organisms with traits that make them better-adapted to their environment are more likely to survive and reproduce than organisms without such adaptations
Directional selection
Microevolution
Gene flow / genetic drift
Natural selection
- 6. Multiple Choice
This is a pattern of natural selection where one extreme form of a trait is more advantageous than the average or the opposite extreme; as a result, this trait in the population tends to evolve towards that one extreme
Directional selection
Disruptive selection
Stabilizing selection
Forward selection
- 7. Multiple Choice
This is the pattern of natural selection where BOTH of the extreme versions of a trait are more advantageous than the average, so a population evolves in both directions away from the average
Directional Selection
Disruptive Selection
Stabilizing Selection
Radical Selection
- 8. Multiple Choice
This occurs when a large population is drastically reduced by an event such as a natural disaster; the population's new gene pool only contains alleles from the survivors
Founder effect
Bottleneck effect
Meteor effect
Natural selection
- 9. Multiple Choice
This is the process that ultimately creates new variations and changes in DNA; leads to the creation of new alleles
Mutation
Microevolution
Natural selection
Gene flow / genetic drift
- 10. Multiple Choice
This is a pattern of natural selection in which the average (or intermediate) form of a trait is the most advantageous, and so a population evolves away from the extremes and toward the average
Disruptive selection
Directional selection
Stabilizing selection
Middle selection
- 11. Multiple Choice
The rock pocket mouse is a species of mouse that lives among the rocky outcroppings in the deserts of the Southwestern US. Researchers have observed that it is advantageous for these mice to have either a very dark or a very light fur color; this is because the very light color allows them to hide among light-colored rocks, and the very dark color allows them to hide among darker, volcanic rocks. The intermediate-colored mice cannot hide as well on either type of rock, and so are at a disadvantage. What type/pattern of natural selection would you expect to occur here?
Stabilizing selection
Disruptive selection
Directional selection
None of these are correct
- 12. Multiple ChoiceMutations are important because they bring aboutdeath of the organism in which they developgenetic variation needed for a population to evolvebenefits for the individual, not for the populationHardey-Weinberg equilibrium within a population
- 13. Multiple ChoiceSurvival of the fittest or when favorable adaptations reproduce faster is called what?EvolutionAdaptationNatural selectionFossilization
- 14. Multiple Choice
What do we call a change in the genome over time?
Evolution
Adaptation
Extinction
Environmental influences
- 15. Multiple Choice
What does the picture represent?Founder EffectMutationsBottleneck effectGene Flow - 16. Multiple ChoiceSince the 1800s humans have stopped burning coal, and the trees have returned to their original color. Which moth will be more successful in this environment?Dark mothLight mothBoth will be equally successfulNeither will be successful
- 17. Multiple Choice
What mechanism of evolution occurs when allele frequencies change over generations due to random chance?
Genetic Drift
Mutation
Natural Selection
Gene Flow
- 18. Multiple Choice
A small group of squirrels gets separates them from the rest of the population due to a large flood. These squirrels, now confined to this new island, begin to start a new population. This is an example of which of the following?
Founder effect
Bottleneck effect
Natural Selection
Gene Flow
- 19. Multiple Choice
What is the difference between genetic drift and natural selection. SELECT ALL THAT APPLY
Natural Selection creates adaptations and Genetic Drift does not.
Natural Selection is not random and Genetic Drift is.
Natural Selection passes on any trait and Genetic Drift passes on specific traits.
Natural Selection happens over a single generation and Genetic Drift happens over multiple generations.
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