Cell Cycle

How many phases are in the cell cycle? 1 2 3 4 G1 the size of the cell increases during this phase occurs after mitosis number of organelles per cell increases drastically during this phase According to the information above, this is the longest phase of the cell cycle S when the sets of DNA is doubled also known as synthesis this is when DNA replication occurs G2 number of organelles in the cell is greatest at the end of this phase the final phase before the process of mitosis M the number of cells increases during this phase cytokinesis happens during this phase is not part of interphase the shortest phase of the cell cycle number of organelles per cell is cut in half during this phase According to the images, if we start with one cell, how many cells would there be after each time interval? Time (hours) Number of Cells 24 2 48 4 72 8 96 16 What is purpose to each checkpoint. G1 Checkpoint Has the cell received enough nutrients to continue? Is there any damage to the DNA? G2 Checkpoint Is the cell large enough to continue? Has the DNA replicated correctly and completely? The checkpoint before cell division can begin Metaphase Checkpoint Have the spindles attached to all the chromosomes? During what phase of the cell cycle does the process below take place? G1 S G2 M