Charles Darwin's Discoveries Quiz 314
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Questions and Answers

What did Darwin observe about the embryos of different species?

  • They develop similarly (correct)
  • They all look different
  • They have identical features
  • They come from different origins

    • According to Darwin, what led to the diversity of life?

  • Genetic drift
  • Specific breeding
  • Random chance
  • Natural selection (correct)

    • How did Darwin perceive nature compared to Victorian society?

  • As a stagnant ecosystem
  • As a battlefield (correct)
  • As a chaotic environment
  • As a friendly place

    • Based on Darwin's observations, why did certain creatures win battles with other species?

    <p>Due to fitness for their environments</p> Signup and view all the answers

    Why do finches have beaks of different sizes and shapes?

    <p>To adapt to different foods on their islands</p> Signup and view all the answers

    What did Darwin conclude about variations within species?

    <p>Variations accumulate and create new species</p> Signup and view all the answers

    Why is DNA mutation important in evolution?

    <p>It introduces variation</p> Signup and view all the answers

    How did the fur color of mice in the Arizona desert relate to their environment?

    <p>Black-furred mice lived on black rock, while white-furred mice lived on white rock</p> Signup and view all the answers

    Where did Darwin make his first important discovery?

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

    What was Darwin's main area of research during his voyage?

    <p>Galapagos Islands</p> Signup and view all the answers

    How can locals determine the origin of a tortoise in the Galapagos Islands?

    <p>By their shell patterns</p> Signup and view all the answers

    What did Darwin begin to collect during his voyage?

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

    What was the main difference among the species of finches Darwin collected?

    <p>Type of beak</p> Signup and view all the answers

    What did Darwin conclude about the relationship between finches' beaks and tortoises' shells?

    <p>They evolved through natural selection</p> Signup and view all the answers

    What made the Galapagos Islands a unique location for Darwin's research?

    <p>The variety of climates on different islands</p> Signup and view all the answers

    What is the primary reason large mammals are not good candidates to study in the laboratory?

    <p>They are difficult to house</p> Signup and view all the answers

    Why did the paintbrush gene create spots in one type of fruit fly and not in the other?

    <p>Different genes were activated in each fruit fly</p> Signup and view all the answers

    What percentage of the genome does not code for proteins?

    <p>98%</p> Signup and view all the answers

    What is a gene switch?

    <p>A DNA segment that turns a gene on or off</p> Signup and view all the answers

    What determines the type of finch that will form inside the embryo?

    <p>Switches being turned on/off in each type of beak</p> Signup and view all the answers

    Why did Neil Shubin decide to look for a specific fossil in Ellesmere Island?

    <p>It was close to the time when fish moved to land</p> Signup and view all the answers

    What did the fossil Tiktaalik indicate about the animal?

    <p>It was a freshwater fish</p> Signup and view all the answers

    What was the possible reason why the fish Tiktaalik wanted to get onto land?

    <p>'To escape predators'</p> Signup and view all the answers

    What was the function of the DNA that differed from chimpanzees at 13 places?

    <p>Caused a disease in muscle</p> Signup and view all the answers

    What is the significance of Hox genes?

    <p>Responsible for body patterning in complex animals</p> Signup and view all the answers

    How did Stedman identify the gene related to muscular dystrophy?

    <p>By observing missing DNA letters</p> Signup and view all the answers

    What did inserting the DNA sequence into a mouse embryo aim to achieve?

    <p>Study the effects on paw development</p> Signup and view all the answers

    How does the human brain differ from a chimpanzee's brain?

    <p>Human brain is significantly larger</p> Signup and view all the answers

    Why did Darwin visit the orangutan Jenny at a nearby zoo?

    <p>To study human behaviors in primates</p> Signup and view all the answers

    What did tracking the DNA sequence in the mouse embryo reveal?

    <p>'Switch' in thumb development</p> Signup and view all the answers

    What gene did Walsh find?

    <p>A gene that controls brain cell division</p> Signup and view all the answers

    Why do chimp brain growth plates close earlier than in humans?

    <p>To allow the brain to grow for a longer duration in humans</p> Signup and view all the answers

    What is microcephaly?

    <p>A state where the brain stops growing prematurely</p> Signup and view all the answers

    What is the cortex responsible for?

    <p>Influencing characteristics like language and music in humans</p> Signup and view all the answers

    How did the healthy human gene compare with the gene in chimps?

    <p>The genes were radically different with numerous mutations</p> Signup and view all the answers

    What is one thing that you would tell Darwin after watching this documentary?

    <p>'Darwinian evolution is well-supported by current research'</p> Signup and view all the answers

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