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 (B)</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 (B)</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 (D)</p> Signup and view all the answers

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

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

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

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

Where does replication of cytoplasmic DNA occur?

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

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