Unit 1 Quiz 5

13 Questions | Total Attempts: 46

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Accounting Quizzes & Trivia

Microevolution


Questions and Answers
  • 1. 
    _________ __________ accounts for more changes in allele frequencies than any other evolutionary process. 
  • 2. 
    The three models of natural selection are:
    • A. 

      Polar

    • B. 

      Directional

    • C. 

      Cohesive

    • D. 

      Stabilizing

    • E. 

      Disruptive

  • 3. 
    What model of natural selection results in dimorphism or polymorphism?
    • A. 

      Directional Selection

    • B. 

      Stabilizing Selection

    • C. 

      Disruptive Selection

  • 4. 
    Which form often occurs due to environmental change?
    • A. 

      Directional

    • B. 

      Stabilizing

    • C. 

      Disruptive

  • 5. 
    What is a graded series of changes in some characteristics correlated with gradual change in an environmental factor over the geographic range of a species.
    • A. 

      Clade

    • B. 

      Cline

    • C. 

      Clone

    • D. 

      Clande

  • 6. 
    Hardy-Weinberg ____________ is used to predict _________ changes in a population over time. 
  • 7. 
    List the 5 agents of Hardy Weinberg Equilibrium.
  • 8. 
    ______ __________ is the addition or removal of alleles from a population when an individual enters or leaves a population.
  • 9. 
    During non-random mating __________ __________ occurs which means due to differences in appearances (like feather color) females will select the most fit mate. 
  • 10. 
    _________ is a severe form of non-random mating that typically occurs in small populations. It results in increased occurence of ________ recessive individuals.
  • 11. 
    When genetic drift occurs:
    • A. 

      Beneficial alleles thrive

    • B. 

      Harmful alleles survive

    • C. 

      Beneficial alleles may be eliminated

    • D. 

      Beneficial alleles are stabilized.

  • 12. 
    What is it called when a small number of individuals leave a population and establish a new isolated population. Therefore, the smaller number of individuals can't contain all the genetic diversity and the population becomes much different than the parent population. 
    • A. 

      Mutation

    • B. 

      Non-Random Mating

    • C. 

      Sympleisomorphy

    • D. 

      Founder Effect

  • 13. 
    A severe and sudden reduction in population size (natural disasters, habitat loss) is called __________ __________, and results in random alteration of allele frequencies.