Practice Quiz

NAEP Science Grade 12 - Question List

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191.
Which of the following techniques is used to increase the quantity of DNA in a sample to be analyzed?
  1. DNA sequencing.
  2. Polymerase chain reaction.
  3. Restriction fragment analysis.
  4. DNA hybridization.
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192.
Researchers trying to date speciation events in the past for which fossils are not available sometimes rely on evidence that assumes the:
  1. Occurrence of convergent evolution.
  2. Validity of the Hardy-Weinberg equilibrium.
  3. Existence of a molecular clock.
  4. Applicability of the biological species concept.
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193.
Which of the following pairs is a result of convergent evolution?
  1. A turtle's egg and a frog's egg.
  2. A bird's wing and a bat's wing.
  3. A housefly's leg and a bee's leg.
  4. A human hand and a monkey hand.
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194.
The original source of variation in a genome is:
  1. Independent assortment.
  2. Recombination.
  3. Crossing over.
  4. Mutation.
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195.
The existence of which of the following situations in a natural population would violate the assumptions of a Hardy-Weinberg equilibrium condition?
  1. Variable environment conditions.
  2. Sexual selection.
  3. High level of phenotypic diversity.
  4. Large population size.
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