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Understanding extrachromosomal DNA in cancer cells
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Understanding extrachromosomal DNA in cancer cells

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Questions and Answers

Which of the following is NOT a characteristic of extrachromosomal DNA (ecDNA) found in some cancer cells?

  • Circular or linear structure
  • Highly organized structure (correct)
  • Variability in copy number
  • Amplified oncogenes

    • What is a common characteristic of extrachromosomal DNA (ecDNA) in some cancer cells?

  • Stable copy number
  • Amplified gene content (correct)
  • Association with tumor suppression
  • Integration into host chromosomes

    • What distinguishes extrachromosomal DNA (ecDNA) in some cancer cells from regular chromosomal DNA?

  • Presence of telomeres
  • Stable inheritance through cell division
  • Containment within the nucleus
  • Amplification of specific genomic regions (correct)

    • Which of the following is NOT a characteristic of extrachromosomal DNA (ecDNA) found in some cancer cells?

    <p>Inability to replicate independently</p> Signup and view all the answers

    What is a distinguishing feature of extrachromosomal DNA (ecDNA) in some cancer cells?

    <p>Small size of 1-10 Kb</p> Signup and view all the answers

    Which characteristic is typically associated with extrachromosomal DNA (ecDNA) in some cancer cells?

    <p>Presence of multiple centromeres</p> Signup and view all the answers

    Which of the following is NOT a characteristic of extrachromosomal DNA (ecDNA) found in some cancer cells?

    <p>Ability to integrate into linear chromosomes</p> Signup and view all the answers

    What distinguishes extrachromosomal DNA (ecDNA) in some cancer cells from regular chromosomal DNA?

    <p>Ability to integrate into linear chromosomes</p> Signup and view all the answers

    Which characteristic is typically associated with extrachromosomal DNA (ecDNA) in some cancer cells?

    <p>Oncogene amplification</p> Signup and view all the answers

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