chapter 6.2 part 9

chapter 6.2 part 9
12問 • 1年前
  • Ishil Arsalan
  • 通報

    問題一覧

  • 1

    What is the main function of the G1 checkpoint?

    To determine whether all conditions are favorable for cell division to proceed

  • 2

    What is the G1 checkpoint also known as?

    The restriction point

  • 3

    What are some of the conditions that are checked at the G1 checkpoint?

    Adequate reserves, cell size, and damage to the genomic DNA

  • 4

    What happens to a cell that does not meet all the requirements at the G1 checkpoint?

    It is not released into the S phase

  • 5

    What is the main function of the G2 checkpoint?

    To bar the entry to the mitotic phase if certain conditions are not met

  • 6

    What are some of the conditions that are assessed at the G2 checkpoint?

    Cell size, protein reserves, and replication of chromosomes

  • 7

    Why is it important to ensure that all of the chromosomes have been replicated at the G2 checkpoint?

    To ensure that the replicated DNA is not damaged

  • 8

    At which stage of mitosis does the M checkpoint occur?

    Metaphase

  • 9

    What is the M checkpoint also known as?

    The spindle checkpoint

  • 10

    What does the M checkpoint determine?

    If all the sister chromatids are correctly attached to the spindle microtubules

  • 11

    Why is it crucial for the kinetochores of each pair of sister chromatids to be firmly anchored to spindle fibers?

    Because the separation of sister chromatids during anaphase is an irreversible step

  • 12

    From which poles of the cell must the spindle fibers arise to which the kinetochores are anchored?

    Opposite poles

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    問題一覧

  • 1

    What is the main function of the G1 checkpoint?

    To determine whether all conditions are favorable for cell division to proceed

  • 2

    What is the G1 checkpoint also known as?

    The restriction point

  • 3

    What are some of the conditions that are checked at the G1 checkpoint?

    Adequate reserves, cell size, and damage to the genomic DNA

  • 4

    What happens to a cell that does not meet all the requirements at the G1 checkpoint?

    It is not released into the S phase

  • 5

    What is the main function of the G2 checkpoint?

    To bar the entry to the mitotic phase if certain conditions are not met

  • 6

    What are some of the conditions that are assessed at the G2 checkpoint?

    Cell size, protein reserves, and replication of chromosomes

  • 7

    Why is it important to ensure that all of the chromosomes have been replicated at the G2 checkpoint?

    To ensure that the replicated DNA is not damaged

  • 8

    At which stage of mitosis does the M checkpoint occur?

    Metaphase

  • 9

    What is the M checkpoint also known as?

    The spindle checkpoint

  • 10

    What does the M checkpoint determine?

    If all the sister chromatids are correctly attached to the spindle microtubules

  • 11

    Why is it crucial for the kinetochores of each pair of sister chromatids to be firmly anchored to spindle fibers?

    Because the separation of sister chromatids during anaphase is an irreversible step

  • 12

    From which poles of the cell must the spindle fibers arise to which the kinetochores are anchored?

    Opposite poles