We have changed our privacy policy. In addition, we use cookies on our website for various purposes. By continuing on our website, you consent to our use of cookies. You can learn about our practices by reading our privacy policy.
© 2016 Shmoop University, Inc. All rights reserved.
Mechanisms of Evolution

Mechanisms of Evolution

Mechanisms of Evolution: I'm a Survivor, I Keep on Surviving True or False

1. Selection occurring when the mean of a population phenotype is favored is -> Disruptive
2. Which of the following best describes all the genes in a population? -> Gene pool
3. Why is sympatric speciation less common than allopatric speciation? -> Not all species migrate.
4. Which of the following causes microevolution? -> All of the above
5. For a population of ferns, there are two alleles for a gene that distinguishes height. Forty percent of gametes in the population have a gene that gives a taller plant. What percent of the gametes in the population have the second allele for a shorter plant? -> 70%
6. Genetic flow is sometimes caused by -> Migration
7. Which of the following best describes two bear populations exchanging genes? -> Genotype
8. When does the Hardy-Weinberg principle apply? -> When a species diverges into two species
9. Which of the following situations could lead to the founder effect in a woodpecker population? -> Deforestation
10. A portion of a fruit fly population is now unable to mate with the rest of the fruit flies, but can mate within this new group. What has occurred? -> Speciation