Origin and Evolution of Life: Page 117-118 Exercises
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Questions and Answers

Which statement is INCORRECT regarding evolution?

  • Mutations are non-random and directional (correct)
  • Mutations are random and nondirectional
  • Adaptive radiations lead to divergent evolution
  • Darwin’s variations are small and directional

    • Which characteristic makes Archaeopteryx known as the missing link?

  • Chordates and nonchordates
  • Birds and reptiles (correct)
  • Annelida and arthropoda
  • Fishes and amphibians

    • What causes gene frequency in a population to remain constant?

  • Random mating (correct)
  • Mutation
  • Non-random mating
  • Migration

    • Which characteristic is NOT shown by the ape?

    <p>Tail is present</p> Signup and view all the answers

    Who can be considered as a connecting link between ape and man?

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

    What was the cranial capacity of Neanderthal man?

    <p>1400 cc</p> Signup and view all the answers

    What is the definition of the gene pool?

    <p>The total genetic information encoded in the sum total of genes in a Mendelian population.</p> Signup and view all the answers

    What is the definition of speciation?

    <p>The process of forming new species from pre-existing species.</p> Signup and view all the answers

    What is adaptive radiation?

    <p>The diversification of a group of organisms into forms filling different ecological niches.</p> Signup and view all the answers

    Who proposed the idea that the first form of life could have come from pre-existing nonliving organic molecules?

    <p>Oparin and Haldane</p> Signup and view all the answers

    What is the correct sequence of the origin of life?

    <p>Inorganic materials - organic materials - colloidal aggregates - Eobiont - cell</p> Signup and view all the answers

    In the Hardy-Weinberg equation, which represents the frequency of homozygous recessive individuals?

    <p>q2</p> Signup and view all the answers

    Which of the following pairs represents analogous organs?

    <p>Flippers of dolphins and penguin</p> Signup and view all the answers

    Who proposed that the first form of life could have come from pre-existing nonliving organic molecules?

    <p>Oparin and Haldane</p> Signup and view all the answers

    What is the correct sequence of the origin of life?

    <p>Inorganic materials - organic materials - colloidal aggregates - Eobiont - cell</p> Signup and view all the answers

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