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5 Written questions

4 Matching questions

  1. what is the only factor that can change allele frequencies in populations to produce adaptive evolutionary change?
    A. mutation
    B. gene flow (immigration)
    C. non-random mating
    D. genetic drift
    E. selection
  2. all of the following are criteria for maintaining an HW equilibrium involving two alleles except
    A. gene flow from other populations must be zero
    B. there should be no natural selection
    C. the frequency of all genotypes must be equal
    D. matings must be random
    E. populations must be large
  3. which of the following best supports the statement that mitochondria are descendants of endosymbiotic bacteria-like cells?
    A. mitochondria and bacteria possess similar ribosomes and DNA
    B. mitochondria and bacteria possess similar nuclei
    C. glycolysis occurs in both mitochondria and bacteria
    D. both mitochondria and bacteria have microtubules
    E. neither mitochondria nor bacteria possess chloroplasts
  4. in a small group of people in kentucky, there is a high incidence of "blue skin", a condition that results from a variation in structure of the hemoglobin. all of the blue skinned residents can trace their ancestry to one couple, who were among the original settlers of this region. the unusually high frequency of blue skin is an example of
    A. mutation
    B. genetic drift
    C. natural selection
    D. sexual selection
    E. heterozygote advantage
  1. a B
  2. b A
  3. c E
  4. d C

5 Multiple choice questions

  1. E
  2. C
  3. B
  4. B
  5. B

5 True/False questions

  1. the condition in which there are barriers to successful interbreeding between individuals of different species in the same community is referred to as
    A. latent variations
    B. sterility
    C. structural differences
    D. geographic isolation
    E. reproductive isolation


  2. 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


  3. which of the following is the most likely reason for the observed differences in the frequency of the g allele between 1965 and 1972
    A. emigration of white moths from the population
    B. chance
    C. selection against the gray phenotype
    D. speciation
    E. mutation


  4. genetic drift is increased by all of the following EXCEPT:
    A. small population size
    B. bottleneck effects when the population size is greatly reduced, then recovers
    C. founder effects when a small number of individuals are isolated and reproduce to form a new sub-population
    D. movement of individuals from one isolated population to another
    E. genetic isolation of a small groups within a population


  5. sl millers classic experiment demonstrated that a discharge of sparks through a mixture of gases could result in the formation of a large variety of organic compounds. all of the following gases were used in this experiment EXCEPT:
    A. hydrogen
    B. methane
    C. ammonia
    D. oxygen
    E. water vapor