Cell Cycle and Mitosis Quiz
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Questions and Answers

Which phase of the cell cycle occurs after DNA replication in the S-phase?

  • G1 phase
  • G2 phase (correct)
  • M-phase
  • Metaphase
  • During which phase of mitosis do chromosomes condense and mitotic spindles assemble between the two centrosomes?

  • Prophase (correct)
  • Metaphase
  • Prometaphase
  • Anaphase
  • How many phases can mitosis be divided into?

  • 3
  • 2
  • 5 (correct)
  • 4
  • What are the end products of mitosis?

    <p>Two identical daughter cells</p> Signup and view all the answers

    Which of the following is NOT a checkpoint in the cell cycle?

    <p>G1 checkpoint</p> Signup and view all the answers

    What is the role of CKIs, RB, and p53 in cell cycle regulation?

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

    In the presence of growth factors, how is cell cycle regulation affected?

    <p>Cell cycle is accelerated</p> Signup and view all the answers

    During which phase of the cell cycle do centrosomes undergo replication?

    <p>G2</p> Signup and view all the answers

    Which structure in the centrosome is surrounded by a cloud or amorphous material?

    <p>Pericentriolar matrix</p> Signup and view all the answers

    What protein attaches chromosomes to spindle microtubules in prometaphase?

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

    During which phase of mitosis do chromatids synchronously separate?

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

    What happens to kinetochore microtubules in anaphase?

    <p>They get shorter</p> Signup and view all the answers

    What is the process by which the cytoplasm divides in two, forming two daughter cells?

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

    What is the number of chromosomes in G1 of the cell cycle?

    <p>2n</p> Signup and view all the answers

    What is the number of chromosomes in prophase?

    <p>2n</p> Signup and view all the answers

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