S-Phase: DNA Replication and Synthesis
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Questions and Answers

What is the net result of DNA replication in terms of DNA content per cell during S-phase?

  • It remains the same at 2C
  • It increases to 4C (correct)
  • It becomes 8C
  • It decreases to 1C

    • What is the fate of chromosome number during S-phase?

  • It remains the same at 2n (correct)
  • It becomes 3n
  • It decreases to 1n
  • It increases to 4n

    • In which stage of the cell cycle can replication of cytoplasmic DNA occur?

  • Only in G2 phase
  • Only in S-phase
  • In any stage of the cell cycle (correct)
  • Only in G1 phase

    • What is the significance of centriole duplication in the cytoplasm during S-phase in animal cells?

    <p>It is a prerequisite for cell division</p> Signup and view all the answers

    What is the outcome of chromosome duplication in terms of DNA content during S-phase?

    <p>The DNA content in a chromosome becomes double</p> Signup and view all the answers

    During S-phase, what happens to the amount of DNA per cell if the initial amount is denoted as 2C?

    <p>It increases to 4C</p> Signup and view all the answers

    What is the result of chromosome duplication during S-phase?

    <p>No change in chromosome number</p> Signup and view all the answers

    What occurs in the nucleus during S-phase in animal cells?

    <p>DNA replication</p> Signup and view all the answers

    Where does replication of cytoplasmic DNA occur?

    <p>In any stage of the cell cycle</p> Signup and view all the answers

    What is the significance of histone protein synthesis during S-phase?

    <p>It is required for chromosome duplication</p> Signup and view all the answers

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