The cell divides into two cells during the M (mitosis) stage of the cell cycle.
When mutated cells ignore checkpoints, they reproduce uncontrollably, forming tumors. During which stage of the cell cycle does the cell divide into two cells?(1 point)
Responses
M
M
G1
G1
G2
G2
S?
7 answers
Some cells ignore cell cycle checkpoints and continue to grow and divide uncontrollably despite cellular or genetic damage. What disease may directly result from such behavior?(1 point)
Responses
anemia
anemia
emphysema
emphysema
diabetes
diabetes
cancer
cancer
Responses
anemia
anemia
emphysema
emphysema
diabetes
diabetes
cancer
cancer
The disease that may directly result from cells ignoring cell cycle checkpoints and growing and dividing uncontrollably is cancer.
Summarize the function of checkpoints in the cell cycle.(1 point)
Responses
Checkpoints prepare the cells for organelle replication.
Checkpoints prepare the cells for organelle replication.
Checkpoints stop the cell cycle when errors are detected.
Checkpoints stop the cell cycle when errors are detected.
Checkpoints allow complete cells to bypass stages of the cycle.
Checkpoints allow complete cells to bypass stages of the cycle.
Checkpoints ready the cells for genetic material replication.
Responses
Checkpoints prepare the cells for organelle replication.
Checkpoints prepare the cells for organelle replication.
Checkpoints stop the cell cycle when errors are detected.
Checkpoints stop the cell cycle when errors are detected.
Checkpoints allow complete cells to bypass stages of the cycle.
Checkpoints allow complete cells to bypass stages of the cycle.
Checkpoints ready the cells for genetic material replication.
The correct response is: Checkpoints stop the cell cycle when errors are detected.
Checkpoints monitor the integrity of the cell's DNA and overall conditions, preventing the cell from proceeding to the next stage of the cycle until any issues are resolved.
A cell contains DNA damage that causes it to undergo apoptosis before reaching mitosis. This cell had twice the amount of DNA for a cell of this type. During which checkpoint did this cell trigger apoptosis?(1 point)
Responses
G1
Checkpoint
cap g sub 1 Checkpoint
G2
Checkpoint
cap g sub 2 Checkpoint
M
Checkpoint
cap m Checkpoint
No checkpoint meets these criteria.
Responses
G1
Checkpoint
cap g sub 1 Checkpoint
G2
Checkpoint
cap g sub 2 Checkpoint
M
Checkpoint
cap m Checkpoint
No checkpoint meets these criteria.
In this scenario, the cell likely triggered apoptosis at the G2 Checkpoint. This checkpoint is responsible for ensuring that DNA has been accurately replicated and that any DNA damage is repaired before the cell enters mitosis. If significant damage is detected, the cell may undergo apoptosis to prevent the propagation of faulty DNA.