chapter 6.2 part 8

chapter 6.2 part 8
16問 • 1年前
  • Ishil Arsalan
  • 通報

    問題一覧

  • 1

    What happens to cells that are not actively preparing to divide?

    They enter an alternate phase called G0

  • 2

    What can trigger a cell in G0 to enter G1?

    External signal

  • 3

    What happens to some cells in G0?

    They remain in G0 permanently

  • 4

    What is true about the length of the cell cycle?

    It is highly variable even within the cells of an individual organism

  • 5

    What is the range of cell turnover frequency in humans?

    From a few hours to an entire human lifetime

  • 6

    Which cells spend an entire human lifetime in G0?

    Cortical neurons or cardiac muscle cells

  • 7

    How long does the G1 phase last in rapidly dividing human cells with a 24-hour cell cycle?

    Approximately 11 hours

  • 8

    What controls the timing of events in the cell cycle?

    Both internal and external mechanisms

  • 9

    How long is the cell cycle in fast-dividing mammalian cells grown in culture?

    Approximately 24 hours

  • 10

    Why is it essential that daughter cells be exact duplicates of the parent cell?

    To prevent mutations from being passed forward

  • 11

    What happens when there are mistakes in the duplication or distribution of chromosomes?

    Mutations may be passed forward to every new cell

  • 12

    What is the purpose of internal control mechanisms in the cell cycle?

    To prevent a compromised cell from continuing to divide

  • 13

    At which stages of the cell cycle do the three main checkpoints occur?

    Near the end of G1, at the G2–M transition, and during metaphase

  • 14

    What is assessed at the G1 checkpoint?

    Integrity of the DNA

  • 15

    What is assessed at the G2 checkpoint?

    Proper chromosome duplication

  • 16

    What is assessed at the M checkpoint?

    Attachment of each kinetochore to a spindle fiber

  • quiz for science chapters 1, 3-5

    quiz for science chapters 1, 3-5

    Ishil Arsalan · 23問 · 1年前

    quiz for science chapters 1, 3-5

    quiz for science chapters 1, 3-5

    23問 • 1年前
    Ishil Arsalan

    same quiz part 2

    same quiz part 2

    Ishil Arsalan · 39問 · 1年前

    same quiz part 2

    same quiz part 2

    39問 • 1年前
    Ishil Arsalan

    same quiz part 3

    same quiz part 3

    Ishil Arsalan · 9問 · 1年前

    same quiz part 3

    same quiz part 3

    9問 • 1年前
    Ishil Arsalan

    same quiz part 4

    same quiz part 4

    Ishil Arsalan · 9問 · 1年前

    same quiz part 4

    same quiz part 4

    9問 • 1年前
    Ishil Arsalan

    same quiz part 5

    same quiz part 5

    Ishil Arsalan · 9問 · 1年前

    same quiz part 5

    same quiz part 5

    9問 • 1年前
    Ishil Arsalan

    same quiz part 6

    same quiz part 6

    Ishil Arsalan · 22問 · 1年前

    same quiz part 6

    same quiz part 6

    22問 • 1年前
    Ishil Arsalan

    same quiz part 7

    same quiz part 7

    Ishil Arsalan · 10問 · 1年前

    same quiz part 7

    same quiz part 7

    10問 • 1年前
    Ishil Arsalan

    same quiz part 8

    same quiz part 8

    Ishil Arsalan · 20問 · 1年前

    same quiz part 8

    same quiz part 8

    20問 • 1年前
    Ishil Arsalan

    chapter 6.1 study

    chapter 6.1 study

    Ishil Arsalan · 20問 · 1年前

    chapter 6.1 study

    chapter 6.1 study

    20問 • 1年前
    Ishil Arsalan

    Spanish 2 lesson 6

    Spanish 2 lesson 6

    Ishil Arsalan · 12問 · 1年前

    Spanish 2 lesson 6

    Spanish 2 lesson 6

    12問 • 1年前
    Ishil Arsalan

    chapter 6.1 part 2

    chapter 6.1 part 2

    Ishil Arsalan · 14問 · 1年前

    chapter 6.1 part 2

    chapter 6.1 part 2

    14問 • 1年前
    Ishil Arsalan

    chapter 6.2 study

    chapter 6.2 study

    Ishil Arsalan · 17問 · 1年前

    chapter 6.2 study

    chapter 6.2 study

    17問 • 1年前
    Ishil Arsalan

    chapter 6.2 study part 3

    chapter 6.2 study part 3

    Ishil Arsalan · 18問 · 1年前

    chapter 6.2 study part 3

    chapter 6.2 study part 3

    18問 • 1年前
    Ishil Arsalan

    chapter 6.2 part 4

    chapter 6.2 part 4

    Ishil Arsalan · 20問 · 1年前

    chapter 6.2 part 4

    chapter 6.2 part 4

    20問 • 1年前
    Ishil Arsalan

    chapter 6.2 part 5

    chapter 6.2 part 5

    Ishil Arsalan · 16問 · 1年前

    chapter 6.2 part 5

    chapter 6.2 part 5

    16問 • 1年前
    Ishil Arsalan

    chapter 6.2 part 6

    chapter 6.2 part 6

    Ishil Arsalan · 13問 · 1年前

    chapter 6.2 part 6

    chapter 6.2 part 6

    13問 • 1年前
    Ishil Arsalan

    chapter 6.2 part 7

    chapter 6.2 part 7

    Ishil Arsalan · 20問 · 1年前

    chapter 6.2 part 7

    chapter 6.2 part 7

    20問 • 1年前
    Ishil Arsalan

    chapter 6.2 part 9

    chapter 6.2 part 9

    Ishil Arsalan · 12問 · 1年前

    chapter 6.2 part 9

    chapter 6.2 part 9

    12問 • 1年前
    Ishil Arsalan

    chapter 6.3 study

    chapter 6.3 study

    Ishil Arsalan · 18問 · 1年前

    chapter 6.3 study

    chapter 6.3 study

    18問 • 1年前
    Ishil Arsalan

    chapter 6.3 part 2

    chapter 6.3 part 2

    Ishil Arsalan · 10問 · 1年前

    chapter 6.3 part 2

    chapter 6.3 part 2

    10問 • 1年前
    Ishil Arsalan

    chapter 6.4 study

    chapter 6.4 study

    Ishil Arsalan · 13問 · 1年前

    chapter 6.4 study

    chapter 6.4 study

    13問 • 1年前
    Ishil Arsalan

    chapter 6.4 part 2

    chapter 6.4 part 2

    Ishil Arsalan · 18問 · 1年前

    chapter 6.4 part 2

    chapter 6.4 part 2

    18問 • 1年前
    Ishil Arsalan

    問題一覧

  • 1

    What happens to cells that are not actively preparing to divide?

    They enter an alternate phase called G0

  • 2

    What can trigger a cell in G0 to enter G1?

    External signal

  • 3

    What happens to some cells in G0?

    They remain in G0 permanently

  • 4

    What is true about the length of the cell cycle?

    It is highly variable even within the cells of an individual organism

  • 5

    What is the range of cell turnover frequency in humans?

    From a few hours to an entire human lifetime

  • 6

    Which cells spend an entire human lifetime in G0?

    Cortical neurons or cardiac muscle cells

  • 7

    How long does the G1 phase last in rapidly dividing human cells with a 24-hour cell cycle?

    Approximately 11 hours

  • 8

    What controls the timing of events in the cell cycle?

    Both internal and external mechanisms

  • 9

    How long is the cell cycle in fast-dividing mammalian cells grown in culture?

    Approximately 24 hours

  • 10

    Why is it essential that daughter cells be exact duplicates of the parent cell?

    To prevent mutations from being passed forward

  • 11

    What happens when there are mistakes in the duplication or distribution of chromosomes?

    Mutations may be passed forward to every new cell

  • 12

    What is the purpose of internal control mechanisms in the cell cycle?

    To prevent a compromised cell from continuing to divide

  • 13

    At which stages of the cell cycle do the three main checkpoints occur?

    Near the end of G1, at the G2–M transition, and during metaphase

  • 14

    What is assessed at the G1 checkpoint?

    Integrity of the DNA

  • 15

    What is assessed at the G2 checkpoint?

    Proper chromosome duplication

  • 16

    What is assessed at the M checkpoint?

    Attachment of each kinetochore to a spindle fiber