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4 Written questions

3 Matching questions

  1. which of the following is a correct statement about mutations?
    A. they are a source of variation for evolution
    B. they drive evolution by creating mutation pressures
    C. theyre irreversible
    D. they occur in germ cells but not in somatic cells
    E. they are most often beneficial to the organissm in which they occur
  2. during which of the following periods could the population have been in HW E for the G locus?
    1 1960-1964
    2 1965-1972
    3 1973-1980

    A. 1 only
    B. 2 only
    C. 3 only
    D. 1 and 3 only
    E. 1, 2, and 3
  3. in a population that is in HW equilibrium, the frequency of a recessive allele for a certain hereditary trait is 0.20. what % of the individuals in the next generation would be expected to show the dominant trait?
    A. 8%
    B. 16%
    C. 32%
    D. 64%
    E. 96%
  1. a D
  2. b E
  3. c A

5 Multiple choice questions

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

5 True/False questions

  1. 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.


  2. 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


  3. which of the following is probably the best explanation for the fact that Antarctic penguins cant fly, although there is evidence that millions of years ago their ancestors could do so?
    A. penguins live on land and feed in the water, therefore they have no need to fly
    B. the antarctic home of penguins is flat and barren, so there's no place to fly
    C. ancestral penguins without large wings were better able to swim and feed in water, so they passed their genes for shorter wing structure to their offspring
    D. ancestral penguins didnt use their wings for long periods of time, so todays penguins have tiny nonfunctional wings


  4. assuming that the population was in HWE for the G locus, what percentage of moths in the natural population was white in 1962?
    A. 2%
    B. 4%
    C. 8%
    D. 20%
    E. 64%


  5. DNA sequences can be used to determine the evolutionary relationships of species because
    A. organisms with similar anatomy will develop similar dna sequences by convergent mutations
    B. dna sequences for proteins never change, so two species that have the same protein will have hte same dna sequences
    C. natural selection causes organisms that live in similar environmental conditions to have the same mutations in their dna sequences
    D. mutations occur randomly in dna at a steady rate, so the number of dna difference is equivalent to the time since a pair of species that shared a common ancestor