General Biology 2_3rd Quarter Review: Recombinant DNA and Stem Cells
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Questions and Answers

According to the passage, which of the following did Darwin not know at the time he observed individual variations in a species?

  • That variations occur among individuals in a population
  • That individuals with the most favorable variations have the best chance of reproducing
  • That gene existed (correct)
  • That evolution is a gradual process
  • What evidence of evolution does the passage discuss related to comparative anatomy?

  • Comparing similar structures in various species (correct)
  • Comparing the development of sea star larvae and primitive invertebrate larvae
  • Comparing the pelvis and leg bones of whales to those of land-dwelling animals
  • Comparing the characteristics of three organisms to infer their evolutionary relationship
  • According to the passage, what is unusual about the Venus flytrap?

  • It can move around
  • It does not have a cell wall
  • It cannot get nutrients from live animals (correct)
  • It belongs to the kingdom Plantae
  • What can be inferred about the relationship between the three organisms discussed in the passage?

    <p>The first two are more closely related to each other than they are to the third</p> Signup and view all the answers

    What evidence does the passage provide for the evolution of whales from land-dwelling animals?

    <p>Whales have a pelvis with small leg bones attached to it</p> Signup and view all the answers

    What does the passage state about the relationship between modern sea star larvae and primitive invertebrate larvae?

    <p>Modern sea star larvae and primitive invertebrate larvae develop heads with ciliary bands early</p> Signup and view all the answers

    Which technology directly involves the manipulation of DNA molecules?

    <p>Recombinant DNA technology</p> Signup and view all the answers

    What is the primary characteristic of stem cells?

    <p>They have the ability to renew themselves and give rise to various cell types.</p> Signup and view all the answers

    Which of the following is NOT a potential therapeutic use of embryonic stem cells mentioned in the text?

    <p>Treating genetic disorders through gene therapy</p> Signup and view all the answers

    What implication does the discovery of a moss-resistant grass have for recombinant DNA technology in agriculture?

    <p>It provides a natural source of moss-resistant genes for crop improvement.</p> Signup and view all the answers

    Which statement about prokaryotes is NOT true according to the information provided?

    <p>Complex organisms such as mammals did not evolve from prokaryotes.</p> Signup and view all the answers

    According to the information provided, in which geographical location does genetic drift occur more rapidly?

    <p>Mainland</p> Signup and view all the answers

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