Use your notes to answer the following questions: n During which phase of the cell cycle does DNA replication occur?

## Step 1<br />The cell cycle is a series of events that cells undergo as they divide and grow. It consists of four main phases: G1, S, G2, and M. <br /><br />## Step 2<br />During the G1 phase, the cell grows and prepares for DNA replication. This phase is characterized by the cell's growth and the synthesis of proteins necessary for DNA replication.<br /><br />## Step 3<br />The S phase, or synthesis phase, is the phase where DNA replication occurs. During this phase, each chromosome is replicated to produce two identical copies, known as sister chromatids.<br /><br />## Step 4<br />The G2 phase is a period of growth and preparation for mitosis, where the cell checks the DNA for any errors and repairs them if necessary.<br /><br />## Step 5<br />The M phase, or mitosis, is the phase where the cell divides its DNA and cytoplasm to produce two daughter cells.