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5 Written Questions

4 Matching Questions

  1. which of the following principles is NOT part of Darwin's original theory of evolution by natural selection?
    A. Evolution is a gradual process that occurs over long periods of time.
    B. Variation occurs among individuals in a population.
    C. Mutations are the ultimate source of genetic variation.
    D. More individuals are born than will survive.
  2. in certain species crosses, such as that between the horse and the donkey, offspring are produced but usually sterile. the most common explanation of this result is that
    A. the chromosomes of the two species differ too much to pair properly in meiosis
    B. the two species differ too much in behavior to be able to mate successfully
    C. embryological development in the two species are incompatible
    D. hormonal differences between the two species prevent proper development of the sex gametes
  3. in certain native american groups, albinism due to a homozygous recessive condition in the biochemical pathway for melanin is sometimes seen. if the frequency of the allele for this condition is 0.06, which of the following is closest to the frequency of the dominant allele in this population? (assume the population is in HW equilibrium)
    A. 0.04
    B. 0.06
    C. 0.16
    D. 0.36
    E. 0.94
  4. the evolution of several species from a single species, each occupying a different niche
    A. founder effect
    B. kin selection
    C. competitive exclusion
    D. adaptive radiation
    E. convergent evolution
  1. a A
  2. b C
  3. c D
  4. d E

5 Multiple Choice Questions

  1. D
  2. A
  3. B
  4. D
  5. E

5 True/False Questions

  1. the bones of a human arm are homologous to structures in all of the following EXCEPT a
    A. whale flipper
    B. bat wing
    C. butterfly wing
    D. bird wing
    E. frog forelimb


  2. less than ten inches of precipitation per year. extremes of hot and cold. large daily temp variations
    A. tropical rain forest
    B. taiga
    C. arctic tundra
    D. temperate grassland
    E. desert


  3. which of the following is an example of convergent evolution
    A. similar amino acid sequences of hemoglobin in humans and chimps
    B. similar bones in the forelimbs of horses and bats
    C. similar body shape of dolphins and fish
    D. different beak shapes of galapogas finches
    E. similar plant species on islands and the nearest continent


  4. the independent development of similarities between unrelated groups resulting from adaptation to similar environments
    A. founder effect
    B. kin selection
    C. competitive exclusion
    D. adaptive radiation
    E. convergent evolution


  5. If a population is ini Hardy Weinberg equilibrium then:
    A. it is evolving to adapt to environmental changes
    B. the frequency of alleles is changing with each generation
    C. mutations, immigration, and selective mating are changing allele frequencies
    D. it is not evolving and allele frequencies remain the same with each generation
    E. Homozygous recessive individuals are less fit.


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