© 2016 Shmoop University, Inc. All rights reserved.
Mechanisms of Evolution

Mechanisms of Evolution

Mechanisms of Evolution: The World Evolves Around Me True or False

1. Selection occurring when one extreme of a population phenotype is favored is -> Disruptive
2. DNA mutations can -> Be adaptive to an organism
3. What type of evolution best describes when speciation occurs? -> Convergent evolution
4. A female blue jay chooses a mate with the brightest feather and prettiest song. This is called -> Genetic drift
5. The bottleneck effect is a type of this mechanism of evolution -> Genetic drift
6. The fitness of an organism is attributed to the organism's -> All of the above
7. Which of the following situations could lead to the bottleneck effect in a species of seagulls? -> Intrasexual selection between male seagulls
8. A species of geese migrates to an area with several other geese populations. What might occur as a result? -> Mutations
9. Which of the following is NOT a type of natural selection: -> Sexual selection
10. In a population of rainbow trout, 10% of gametes carry an allele that codes for shinier scales. A second allele codes for a duller scale. What percent of the population is heterozygous for scale shininess? -> 2%