Heredity & Evolution Chapter 1 Quiz
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Questions and Answers

Which of the following is responsible for the formation of new species?

  • Genetic variation, geographical, and reproductive changes (correct)
  • Geographical and reproductive isolation
  • Ability to walk upright and excessive use of hands for manipulation
  • Increase in brain volume and body size

    • Approximately 7 crore years ago, the ancestors of monkey-like animals were:

  • The first human beings
  • Lemur-like animals which evolved during this time (correct)
  • Dinosaurs that disappeared at that time
  • The first apelike animals

    • What evolutionary change took place around 4 crore years ago in monkey-like creatures?

  • Ability to walk upright and excessive use of hands for manipulation
  • Increase in brain volume and body size
  • Formation of new species
  • Disappearance of tails (correct)

    • When did the true wise and intelligent man arise according to the given passage?

    <p>Around 50,000 years ago</p> Signup and view all the answers

    What leads to speciation according to the passage?

    <p>Geographical and reproductive isolation</p> Signup and view all the answers

    What is responsible for the formation of new species along with genetic variation?

    <p>Geographical and reproductive changes</p> Signup and view all the answers

    What is the main reason fossils are preserved underground?

    <p>They are remnants of organisms that resist decay after burial.</p> Signup and view all the answers

    What technique is used to determine the age of fossils?

    <p>Radiocarbon dating</p> Signup and view all the answers

    What does the initial similarity between vertebrate embryos provide evidence for?

    <p>Common ancestry for all vertebrate classes.</p> Signup and view all the answers

    Which process is referred to as the transfer of information from DNA to mRNA?

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

    What is the main principle behind sudden changes in organisms?

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

    Which scientist provided evidence for protein synthesis occurring through genes?

    <p>George Beadle and Edward Tatum</p> Signup and view all the answers

    What does vestigial organ Appendix present in the human body serve as proof of?

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

    "Theory of inheritance of acquired characters" is associated with which scientist?

    <p>Jean-Baptiste Lamarck</p> Signup and view all the answers

    "Lamarckism" suggests that morphological changes in living organisms are due to:

    <p>&quot;Use and disuse&quot; of organs.</p> Signup and view all the answers

    What has contributed to the development of weak wings in some bird species according to Lamarckism?

    <p>Disuse of wings</p> Signup and view all the answers

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