Biology Chapter 12 The Cell Cycle Quiz
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Questions and Answers

During which phase of mitosis do sister chromatids separate and move towards opposite poles of the cell?

  • Metaphase
  • Prophase
  • Anaphase (correct)
  • Telophase
  • What is responsible for attaching the sister chromatids to the spindle fibers during cell division?

  • Centrioles
  • Astrosomes
  • Centromeres
  • Kinetochore proteins (correct)
  • Which phase of mitosis involves the chromosomes aligning along the equatorial plane of the cell?

  • Metaphase (correct)
  • Anaphase
  • Prophase
  • Telophase
  • Which part of the mitotic spindle is responsible for pushing the poles of the cell apart during cell division?

    <p>Nonkinetochore microtubules</p> Signup and view all the answers

    What is the stage of mitosis where the nuclear envelope reforms around each set of daughter chromosomes?

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

    Which phase of mitosis marks the beginning of chromosome condensation and spindle formation?

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

    What is the structure that attaches to the centromere of a chromosome during cell division?

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

    In which phase of mitosis do the sister chromatids separate and move towards opposite poles of the cell?

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

    What are the microtubules that form the mitotic spindle called?

    <p>Spindle microtubules</p> Signup and view all the answers

    Which process involves the complete separation of daughter cells at the end of cell division?

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

    When does the nuclear envelope start to reform around separated daughter chromosomes during cell division?

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

    What part of the cell cycle is regulated by specific chemical signals present in the cytoplasm?

    <p>Cell division</p> Signup and view all the answers

    What is the narrow 'waist' of a duplicated chromosome where the two sister chromatids are most closely attached?

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

    During which phase of mitosis do sister chromatids separate and move along the kinetochore microtubules toward opposite ends of the cell?

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

    What is the structure that controls chromosome movement during mitosis?

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

    What is the midway point between the two spindle poles where chromosomes line up during metaphase?

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

    In which phase of mitosis does the assembly of spindle microtubules begin?

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

    What is the process known as cleavage that occurs during cytokinesis in animal cells?

    <p>Cleavage furrow</p> Signup and view all the answers

    What forms during cytokinesis in plant cells to create a new cell wall?

    <p>Cell plate</p> Signup and view all the answers

    Which structure extends from each centrosome and includes centrosomes and spindle microtubules?

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

    What is the structure on chromosomes where spindle microtubules attach during prometaphase?

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

    In which phase of mitosis do genetically identical daughter nuclei form at opposite ends of the cell?

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

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