Explain two reasons why cells must go through the cell cycle.
The graph below shows the amount of DNA throughout the cell cycle.
Click on the portion of the graph where DNA replication occurs.
What is the role of the 4 checkpoints in the cell cycle?
The p53 gene in mammalian cells is known to stop the cell cycle in response to damaged DNA. If this gene is damaged without repair, which of the following is most likely to occur?
The diagram shows cells in different phases of mitosis. A student is trying to find a cell in a particular phase of mitosis. The student is looking for evidence that spindle fibers are separating the chromosomes to ensure that each new nucleus has one copy of each chromosome.
Which cell is in the phase of mitosis that the student is searching for?
