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Mechanisms of Evolution

Mechanisms of Evolution


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?󑵎%
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
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