How Much Do You Know About Telomeres and Aging?
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Questions and Answers

What is the average telomere length in humans at birth?

  • Less than 4 kb
  • 4 kb
  • 11 kb (correct)
  • More than 11 kb

    • What is the enzyme responsible for synthesizing complementary DNA from RNA template?

  • Telomerase
  • Reverse transcriptase (correct)
  • RNA-dependent DNA polymerase
  • Euchromatin

    • What is the composition of telomerase?

  • DNA nucleotides and RNA polymerase
  • DNA nucleotides and reverse transcriptase
  • RNA nucleotides and reverse transcriptase (correct)
  • RNA nucleotides and DNA polymerase

    • What is the effect of shortening telomeres in somatic cells?

    <p>Cell death</p> Signup and view all the answers

    What is the function of euchromatin?

    <p>Affecting genes</p> Signup and view all the answers

    What happens to telomeres with old age?

    <p>They disappear</p> Signup and view all the answers

    What is the role of RNA-dependent DNA polymerase?

    <p>To synthesize DNA from RNA template</p> Signup and view all the answers

    What is the natural state of telomerase activity in normal somatic cells?

    <p>Naturally inhibited</p> Signup and view all the answers

    What is the effect of losing euchromatin?

    <p>Cell death</p> Signup and view all the answers

    What is the template for RNA nucleotides in telomerase?

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

    What is the enzyme activity of reverse transcriptase?

    <p>RNA-dependent DNA polymerase</p> Signup and view all the answers

    What is the effect of telomerase activity in somatic cells?

    <p>Cell multiplication</p> Signup and view all the answers

    What is the average telomere length in humans at birth?

    <p>11 kb</p> Signup and view all the answers

    What is the enzyme responsible for synthesizing complementary DNA from RNA template?

    <p>Reverse transcriptase</p> Signup and view all the answers

    What is the composition of telomerase?

    <p>RNA nucleotides and reverse transcriptase</p> Signup and view all the answers

    What is the effect of shortening telomeres in somatic cells?

    <p>Cell death</p> Signup and view all the answers

    What is the function of euchromatin?

    <p>Affecting genes</p> Signup and view all the answers

    What happens to telomeres with old age?

    <p>They disappear</p> Signup and view all the answers

    What is the role of RNA-dependent DNA polymerase?

    <p>To synthesize DNA from RNA template</p> Signup and view all the answers

    What is the natural state of telomerase activity in normal somatic cells?

    <p>Naturally inhibited</p> Signup and view all the answers

    What is the effect of losing euchromatin?

    <p>Cell death</p> Signup and view all the answers

    What is the template for RNA nucleotides in telomerase?

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

    What is the enzyme activity of reverse transcriptase?

    <p>RNA-dependent DNA polymerase</p> Signup and view all the answers

    What is the effect of telomerase activity in somatic cells?

    <p>Cell multiplication</p> Signup and view all the answers

    What is the average length of telomeres in humans at birth?

    <p>11 kb</p> Signup and view all the answers

    What is the enzyme responsible for synthesizing complementary DNA from RNA template?

    <p>Reverse transcriptase</p> Signup and view all the answers

    What is the capacity of RNA-dependent DNA polymerase?

    <p>To synthesize DNA from RNA template</p> Signup and view all the answers

    What is the effect of telomere shortening on genes?

    <p>It affects gene expression</p> Signup and view all the answers

    What is the composition of telomerase?

    <p>Both RNA nucleotides and RT enzyme activity</p> Signup and view all the answers

    What is the function of telomerase in normal somatic cells?

    <p>To inhibit telomere shortening</p> Signup and view all the answers

    What is the effect of telomere shortening on cell division in eukaryotes?

    <p>It affects cell division</p> Signup and view all the answers

    What is the effect of telomere shortening on telomeres themselves?

    <p>It affects telomeres</p> Signup and view all the answers

    What is the enzyme activity of reverse transcriptase (RT)?

    <p>RNA-dependent DNA polymerase</p> Signup and view all the answers

    What is the effect of telomere shortening on telomerase activity in normal somatic cells?

    <p>It inhibits telomerase activity</p> Signup and view all the answers

    What is the effect of telomere shortening on telomere length in humans?

    <p>It shortens telomere length</p> Signup and view all the answers

    What is the effect of telomerase activity in normal somatic cells?

    <p>It inhibits telomere shortening</p> Signup and view all the answers

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