Telomeres Discovery Quiz
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Questions and Answers

Who discovered the telomere composition in Tetrahymena?

  • Elizabeth Blackburn and Joe Gall (correct)
  • Elizabeth Blackburn and Carol Grieder
  • Meselson and Stahl
  • Tetrahymena itself
  • What is the sequence found in tandem arrays at the ends of rDNA fragments in Tetrahymena?

  • GGGTTT
  • GGGTTA
  • TTAGGG
  • TTGGGG (correct)
  • Which organism has about 40,000 telomeres due to its fragmented chromosomes?

  • Human
  • Tetrahymena (correct)
  • E. coli
  • Ribosome
  • Who addressed the question of how repeats are added to chromosome ends after each round of replication?

    <p>Elizabeth Blackburn and Carol Grieder</p> Signup and view all the answers

    What is the sequence found at the ends of human chromosomes?

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

    What was the main discovery made by Elizabeth Blackburn and Joe Gall in 1978?

    <p>The presence of tandem repeats at the ends of chromosomes</p> Signup and view all the answers

    What was the sequence found at the ends of rDNA fragments in Tetrahymena?

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

    What is the composition of human chromosome ends?

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

    Why was Tetrahymena considered the perfect choice to determine telomere composition?

    <p>Because it contains fragmented chromosomes</p> Signup and view all the answers

    Who addressed the question of how repeats are added to chromosome ends after each round of replication?

    <p>Elizabeth Blackburn and Carol Grieder</p> Signup and view all the answers

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