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 (D)</p> Signup and view all the answers

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

<p>Australopithecus (C)</p> Signup and view all the answers

What was the cranial capacity of Neanderthal man?

<p>1400 cc (A)</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. (A)</p> Signup and view all the answers

What is the definition of speciation?

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

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

<p>q2 (B)</p> Signup and view all the answers

Which of the following pairs represents analogous organs?

<p>Flippers of dolphins and penguin (D)</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 (D)</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 (A)</p> Signup and view all the answers

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