Junco Exam

20 Questions | Total Attempts: 108

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Junco Exam

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Questions and Answers
  • 1. 
    The common garden experiment allowed scientists to decide whether exploratory behavior of Juncos could be inherited because
    • A. 

      It included a genetic test of the birds’ DNA

    • B. 

      It put city and mountain juncos in the same “neutral” place to see if their behaviors changed or stayed the same

    • C. 

      It bred city and mountain juncos together to see whether they could produce offspring

    • D. 

      It compared the patterns of inheritance for alleles

  • 2. 
    In the common garden experiment, the juncos from the city showed more exploratory behavior on average as compared to birds from the mountains. Which conclusion is supported about boldness behavior in juncos?
    • A. 

      It’s learned, because the males had more exploratory behavior than females.

    • B. 

      It’s inherited, because the males had more exploratory behavior than females.

    • C. 

      It’s learned, because some of the mountain females’ levels of exploratory behavior were higher than the city females’ levels of behavior.

    • D. 

      It’s inherited, because there were significant differences between city and mountain juncos in average exploratory behavior, both for males and for females.

  • 3. 
    If we wanted to compare the VARIATION in wing size between mountain juncos and city juncos, the best statistic to compare for each population would be:
    • A. 

      The number of juncos in each population

    • B. 

      The range of wing sizes in each population

    • C. 

      The median wing size in each population

    • D. 

      The mean wing size in each population

  • 4. 
     If a scientist brought a male junco to you with 37% white tail feathers but didn’t tell you where they got it, what population would you conclude it MOST likely came from?
    • A. 

      The City, because the percent white in tail feather is closer to the average of city males.

    • B. 

      The City, because it is within the range of likely values for percent white in tail feathers for city juncos and close to the average for city males.

    • C. 

      The Mountains, because it is closer to the average and within the range of likely values for percent of white in tail feathers for mountain juncos.

    • D. 

      The Mountains, because 37% is greater than 36%, which is the average in the City.

  • 5. 
    Some people say that city squirrels are more aggressive than squirrels in the countryside. In the city, squirrels come right up to people to take food from their hands. In the country, squirrels are more likely to run away from people. How could you evaluate the claim that squirrels’ level of aggressiveness is inherited and not learned.
    • A. 

      Conduct a Common Garden Experiment

    • B. 

      Measure aggressiveness in ONLY one population.

    • C. 

      Compare their physical characteristics

    • D. 

      See if the two populations interbreed. 

  • 6. 
    How can we use mtDNA and mutation rate to help figure out how closely related 2 individuals are? (check all that apply)
    • A. 

      We can count the mutations that occur in the mtDNA and then compare them between individuals.

    • B. 

      If there are a lot of differences, then individuals are more closely related.

    • C. 

      If there are a lot of similarities, then individuals are more closely related.

    • D. 

      We can count the mutations that occur in the Y chromosome and then compare them between individuals.

  • 7. 
    Selection pressure in the UCSD environment caused a competitive advantage for juncos that were (check all that apply)
    • A. 

      Bolder

    • B. 

      Better parents

    • C. 

      Produced more CORT

    • D. 

      More aggressive

  • 8. 
    The juncos that were able to survive and reproduce (check all that apply)
    • A. 

      Passed on their traits

    • B. 

      Passed on their genes

    • C. 

      Passed on their alleles

  • 9. 
    What is FID?
    • A. 

      The distance when the bird sees the person.

    • B. 

      The distance when the bird makes an alarm call.

    • C. 

      The distance when the bird's heart rate increases.

    • D. 

      The distance when the bird flies away.

  • 10. 
    The median is the number that occurs most often.
    • A. 

      True

    • B. 

      False

  • 11. 
    The scientist who came up with the scientific theory of natural selection.
    • A. 

      Charles Darwin

    • B. 

      Jane Goodall

    • C. 

      Jean-Baptiste Lamarck

    • D. 

      Gregor Mendel

  • 12. 
    Correlation is a connection or relationship between two things.
    • A. 

      True

    • B. 

      False

  • 13. 
    In the Common Garden experiment with the juncos, scientists found
    • A. 

      Boldness behavior is inherited.

    • B. 

      Boldness behavior is learned.

    • C. 

      The UCSD juncos produce more CORT

    • D. 

      The Mt. Laguna juncos produce less CORT. 

  • 14. 
    You can trace maternal lineage using the Y chromosome.
    • A. 

      True

    • B. 

      False

  • 15. 
    A genome is
    • A. 

      An organism's complete set of genes.

    • B. 

      The different forms of a gene.

    • C. 

      Used to measure boldness.

    • D. 

      Another name for a karyotype.

  • 16. 
    A mutation is a change that occurs in the DNA
    • A. 

      True

    • B. 

      False

  • 17. 
    Different forms of a gene
    • A. 

      Genome

    • B. 

      Allele

    • C. 

      Chromosome

    • D. 

      Mitochondria

  • 18. 
    This is a DNA resonance image.
    • A. 

      True

    • B. 

      False

  • 19. 
    Individuals are considered the same species if they can interbreed.
    • A. 

      True

    • B. 

      False

  • 20. 
    Select all correct statements.
    • A. 

      A population can evolve.

    • B. 

      A species can evolve

    • C. 

      An individual can evolve

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