Chromosome Replication and Mitosis Quiz
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Questions and Answers

What happens during S phase of the cell cycle?

  • Condensing chromosomes into visible structures
  • Cell growth and synthesis of proteins required for mitosis (correct)
  • Duplicating and dividing chromosomes
  • Breaking down of the nuclear membrane
  • Which stage of mitosis involves the separation of sister chromatids?

  • Metaphase
  • Telophase
  • Anaphase (correct)
  • Prophase
  • Where do sister chromatids attach during prometaphase of mitosis?

  • Centrosomes
  • Spindle fibers
  • Microtubules from opposite poles (correct)
  • Nucleoli
  • What happens in telophase of mitosis?

    <p>Spindle disappears and chromosomes decondense</p> Signup and view all the answers

    In which phase do chromosomes condense and become visible?

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

    What is the major difference between S phase and G2 phase?

    <p>Chromosomes replicate during S phase but not in G2 phase</p> Signup and view all the answers

    Which term best describes chromosomes that are joined at the centromere?

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

    What type of chromosome has its centromere located near one end?

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

    During mitosis, what is the main function of the centrosome?

    <p>Formation of microtubules</p> Signup and view all the answers

    What does a karyotype primarily display?

    <p>Chromosome number and structure</p> Signup and view all the answers

    What is the term for identical copies of a replicated chromosome?

    <p>Sister chromatids</p> Signup and view all the answers

    Which cells in the body usually stop dividing and arrest in a specific stage of the cell cycle?

    <p><strong>Neurons</strong></p> Signup and view all the answers

    During which stage of mitosis do centromeres of all chromosomes split simultaneously?

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

    What is the function of kinetochore microtubules during mitosis?

    <p>They shorten and pull separated sister chromatids to opposite poles</p> Signup and view all the answers

    Which structure re-forms during the telophase of mitosis?

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

    When does cytokinesis, the final stage of cell division, begin?

    <p>During anaphase</p> Signup and view all the answers

    In which stage of mitosis do chromosomes align on the metaphase plate with sister chromatids facing opposite poles?

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

    What is the characteristic shape of separated sister chromatids during anaphase of mitosis?

    <p>V shape</p> Signup and view all the answers

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