Evolution Review Questions for AP Biology

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By — McGraw-Hill Professional
Updated on Oct 24, 2011

Review the following concepts if needed:

Review Questions

  1. Which of the following is an evolutionary process not based on random factors?
    1. Genetic drift
    2. Natural selection
    3. Mutation
    4. Gene flow
    5. Bottlenecks
  2. Which of the following is not a sexually selected trait?
    1. Fruit fly wings
    2. A male baboon's canine teeth
    3. Peacock tail feathers
    4. Male/female dimorphism in body size in many species
    5. A frog's throat sac
  3. An adaptation
    1. can be shaped by genetic drift.
    2. cannot be altered.
    3. evolves because it specifically improves an individual's mating success.
    4. affects the fitness of an organism if it is altered.
    5. can be deleterious to an organism.
  4. Which of the following is not a requirement for natural selection to occur?
    1. Variation between individuals
    2. Heritability of the trait being selected
    3. Sexual reproduction
    4. Differences in reproductive success among individuals
    5. Survival of the fittest
  5. hy can Hardy–Weinberg equilibrium occur only in large populations?
    1. Large populations are likely to have more variable environments.
    2. More individuals means less chance for natural selection to occur.
    3. Genetic drift is a much stronger force in small versus large populations.
    4. Large populations make random mating virtually impossible.
    5. Large populations tend to last longer than small ones.
  6. A population of frogs consists of 9 percent with speckles (the recessive condition) and 91 percent without speckles. What are the frequencies of the p and q alleles if this population is in Hardy–Weinberg equilibrium?
    1. p = 0.49, q = 0.51
    2. p = 0.60, q = 0.40
    3. p = 0.70, q = 0.30
    4. p = 0.49, q = 0.30
    5. p = 0.49, q = 0.09
  7. Frequency-dependent selection is
    1. particularly important during speciation.
    2. one way in which multiple alleles are preserved in a population.
    3. possible only when there are two alleles.
    4. most common in bacteria.
    5. the same as heterozygote advantage.
  8. All of the following provide evidence for evolution except
    1. vestigial characters.
    2. darwin's finches.
    3. homologous characters.
    4. embryology.
    5. mutations.
  9. Why do we assume that oxygen was not present in the original atmosphere?
    1. The presence of O2 would have resulted in the evolution of too many species too fast.
    2. Oxygen would have slowed down the rate of evolution.
    3. We know the ozone layer, which is formed by oxygen, has not been around that long.
    4. Inorganic molecules could not have formed in the presence of oxygen.
    5. All the oxygen was held in the volcanoes.
  10. All these are examples of random evolutionary processes except
    1. An earthquake divides a single elk species into two populations, forcing them to no longer interbreed.
    2. A mutation in a flower plant results in a new variety.
    3. An especially long winter causes a group of migrating birds to shift their home range.
    4. A mutation results in a population of trees that spread their seeds more widely than their peers, causing their population to grow.
    5. A spider species declines in an area because individuals are consistently moving out of an old range and into a new range.
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