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5 Written questions

3 Matching questions

  1. for some traits such as birth weight, natural selection favors individuals that are average and the extremes are selected against this is known as:
    A. diversifying selection
    B. directional selection
    C. adaptive radiation
    D. disruptive selection
    E. stabilizing selection
  2. 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
  3. assuming that the population was in HWE for the g locus, what percentage of gray moths emerged in 1980 was heterozygous
    A. 0%
    B. 25%
    C. 33%
    D. 67%
    E. 100%
  1. a D
  2. b E
  3. c A

5 Multiple choice questions

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

5 True/False questions

  1. in a HW population, the frequency of the a allele is 0.4. what is the frequency of individuals with Aa genotype?
    A. 0.16
    B. 0.20
    C. 0.60
    D. 0.48
    E. cant tell from info provided
    B

          

  2. the appearance of a fertile, polyploidy individual within a population of diploid organisms is a possible source of a new species. if this individual is capable of reproducing to form a new population. scientists would consider this to be an example of:
    A. allopatric speciation
    B. sympatric speciation
    C. polygenic speciation
    D. genetic drift
    E. hardy weinberg equilibrium
    A

          

  3. 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
    E

          

  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
    B

          

  5. during the carbon cycle, which of the following carbon compounds would be utilized as an energy source by heterotrophs?
    A. calcium carbonate
    B. carbonic acid
    C. organic molecules
    D. carbon dioxide
    E. carbon monoxide
    D