AP Bio Ch 19 Quiz

8 Questions | Total Attempts: 429

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AP Biology Quizzes & Trivia

Biological evolution refers to the cumulative changes that occur in a population over time. These changes are produced at the genetic level as organisms' genes mutate and/or recombine in different ways during reproduction and are passed on to future generations. Take up the quiz below and get to know more about the evolution process.


Questions and Answers
  • 1. 
    All the members of a single species that occupy a particular area at the same time are known as a
    • A. 

      Subspecies.

    • B. 

      Gene pool.

    • C. 

      Population.

    • D. 

      Group.

    • E. 

      Sub-population.

  • 2. 
    Drug-resistance mutations occur in bacteria
    • A. 

      Only when they are exposed to the drug to which they become resistant.

    • B. 

      More often when they are exposed to the drug.

    • C. 

      At any time, even when they are not exposed to the drug.

    • D. 

      Only when they are exposed to radiation or other mutagens.

  • 3. 
    Which of the following is true about genetic drift?
    • A. 

      It is more likely to occur in a large population than in a small population.

    • B. 

      It may lead to an allele's becoming fixed in a population when its alternative allele is lost from the population.

    • C. 

      It increases the number of heterozygotes in a population.

    • D. 

      It increases the level of rare alleles in a population.

  • 4. 
    The bottleneck effect is thought to be responsible for the loss of variability and loss of fertility in the cheetah species.
    • A. 

      True

    • B. 

      False

  • 5. 
    Industrial melanism in peppered moths in England is an example of stabilizing selection.
    • A. 

      True

    • B. 

      Fasle

  • 6. 
    Gene mutation occurs at any time, without respect to the mutation's adaptive value or benefit to the organism.
    • A. 

      True

    • B. 

      False

  • 7. 
    The Hardy-Weinberg equilibrium is usually met in most populations in changing environments.
    • A. 

      True

    • B. 

      False

  • 8. 
    An example of the founder effect is seen in populations such as the Amish in Pennsylvania, in which unusual genes are found in large numbers in the isolated population.
    • A. 

      True

    • B. 

      False